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The Sexiest Metal

jonerik writes "Denver's weekly Westword magazine has this article on titanium and the attempts to break it out of its traditional aerospace/defense industry niche, including its growing use in architecture, computers, jewelry, sports, knives, cars, medicine, and other areas. The upside: It's as strong as steel but weighs half as much, it doesn't rust, and it's fairly plentiful. The downside: It's expensive compared to steel and aluminum and its high melting point makes it difficult to work with under some conditions. Still, it's nice to see it being used in other applications." Heck, I know someone who used it as his wedding ring. Pretty cool, actually.

475 comments

  1. TMNT by yeoua · · Score: 1

    But the question is, "When can I get my own titanium plated technodrome?"

    1. Re:TMNT by ShadeEagle · · Score: 1

      As soon as you befriend an alien brain from Dimension X, of course!

    2. Re:TMNT by Anonymous Coward · · Score: 0

      While we're on the subject of the Technodrome, what did that giant eye thingy do that was on the top of it?

    3. Re:TMNT by Anonymous Coward · · Score: 0

      Look, presumably.

      /me ducks

    4. Re:TMNT by harks · · Score: 1

      According to the technodrome action playset it rolled off and hit attacking Turtles, if my memory serves me correctly

  2. And that's why... by Gehenna_Gehenna · · Score: 2
    my TiPowerbook is sexy.

    Boo yah.

    Not for anything, but I get looks of envy everywhere I go. I love that computer.

    --

    1. Re:And that's why... by discstickers · · Score: 1

      So is mine. =D

      I also got titanium glasses to match my TiBook.

      I'll never find my laptop with a hole in it, unlike my girlfriend. Her plastic Compaq just acquired a hole on the side of the lid.

      --
      I have a shitty sig!
    2. Re:And that's why... by laserjet · · Score: 2, Funny

      Isn't your girlfriend SUPPOSED to have a hole?

      [ducks]

      --
      Moon Macrosystems. Sun's biggest competitor.
  3. Titanium Glasses by freakboy303 · · Score: 2, Funny

    The greatest thing about my titanium glasses is that some little part of me would survive re-entry should I fall off the space shuttle in the future!

    --
    -- I am baseball in Minnesota.
    1. Re:Titanium Glasses by sacherjj · · Score: 2, Interesting

      I HAD to get titanium frames on my glasses, because my sweat is so acidic. The other glasses I used to wear when I worked out had some type of metal that was pulverized after one year of sweat exposure. The titanium looks just like new, after almost two years. Did I mention they are light. :)

    2. Re:Titanium Glasses by Anonymous Coward · · Score: 0

      I bet you're aromatic, what with that sweat eating through metal and presumably clothing as well. ;-)

    3. Re:Titanium Glasses by Anonymous Coward · · Score: 0

      note "glasses i wore when i worked out", being a limited-time intense period of excretion.

    4. Re:Titanium Glasses by Anonymous Coward · · Score: 0

      Hey Anonymous Coward,

      If you want a work out, come ride a bicycle across the country with my this summer. :)

    5. Re:Titanium Glasses by Anonymous Coward · · Score: 0

      other than your ass?

    6. Re:Titanium Glasses by Anonymous Coward · · Score: 0

      (Hmm, interesting - "science.slashdot.org" doesn't pick up my cookie)

      My titanium frames are so light they don't need those crappy plastic bits that rub against your nose. They just nestle lightly on the bridge. Of course, you need to have plastic lenses to fully appreciate that and they scratch more easily. Ah well.

    7. Re:Titanium Glasses by dalassa · · Score: 1

      I love my titanium glasses. Without them I would have to wrap tape around my glasses to prevent my nickel allergy from making my face bleed. So light too. Now all I need is some of this titanium jewelry.

      --
      Feminism is the radical notion that women are people.
  4. Titanium Graphics Cards by Kargan · · Score: 1

    My GeForce 2 is made out of titanium! Extra durable, for those all-night gaming sessions.

    --
    Palaces, barricades, threats, meet promises
  5. Titanium is also very flexible. by Flarners · · Score: 5, Insightful

    Titanium may be as strong as steel, but it's far easier to bend when cut thin. Anybody who has one of the titanium PowerBooks will attest to the fact that if you try to pick them up from one end, the thing will bend disturbingly. This is why you won't see titanium in kitchen sinks, silverware or anywhere else where the metal needs to be thin, strong, and unflexible. The only thing it has going over steel in these cases is buzzword compliance and price (if it's more expensive, it must be better!)

    --
    "The problem with the French is that they don't have a word for 'entrepeneur'." -George W. Bush
    1. Re:Titanium is also very flexible. by eweu · · Score: 1

      Huh?

      My TiBook is incredibly rigid-- no flex at all. Now my Pismo... that thing twists like Red Vines....

    2. Re:Titanium is also very flexible. by Shinobi · · Score: 2, Informative

      Considering that titanium has been used in mountainbike frames for at least 8 years, and in quite a thin layer, especially compared to the steel/cro-mo frames, and have proven themselves to be just as durable, you are quite wrong. I used to compete in mountainbiking, and I had a titanium frame. Me and another biker smashed into a rock at about 45km/h, with our bikes hitting the rock instead of us hitting it, and his alu 8005 frame got warped, his upper tube bending, while my titanium frame barely got scratched.

    3. Re:Titanium is also very flexible. by Flarners · · Score: 4, Informative

      The newer TiBooks are reinforced in order to prevent this bending problem. The first few runs of them (including my own) flop around to a dangerous degree unless you make sure to pick them up with both hands. If a CD or DVD's in its drive, you can hear it getting scuffed up by the drive hardware when it bends! Apple's "designer" computers have a history of problems in the first run (heat fissures in the plastic moulding of the G4 cubes come to mind). Be glad you weren't an early adopter :)

      --
      "The problem with the French is that they don't have a word for 'entrepeneur'." -George W. Bush
    4. Re:Titanium is also very flexible. by C_nemo · · Score: 1

      shit, you'r just plain stupid.

      i don't think the titanium frames in your bike is as thin as the plating of early TiBook's. anyway the frame of a bike is constucted in a way that's supposed to absorb the loads of biking. a laptop in the other hand is just a slender beam, with thin edges. pick it up on one side and see the cool effects of yealding metal.
      as for the alu frame:
      yield strenght of mild steel: 210 GPa
      yeald strenght of alu(alloy): 60-70 Gpa

      go figure

    5. Re:Titanium is also very flexible. by The+Mayor · · Score: 2

      I don't know the properties of Ti off hand, but I think the original poster was trying to say it has good tensile strength relative to weight when compared to steel, but it doesn't have good sheering strength compared to steel. Your bike frame is made to distribute forces to act against the tensile strength and not the sheering string (cylindrical shapes, like on your bike tube, are good for this).

      --
      --Be human.
    6. Re:Titanium is also very flexible. by Shinobi · · Score: 1

      First, the thickness of the material in my frame was about 2mm.

      As for tolerances, there are alu alloys that have tolerances that are high enough to come close to good Cro-Mo steel alloys. 7005 and 8005 are two of them. 7005 and 8005 are frequently used in airplanes, bike frames, subs, weapons and other things that need quite high tolerances, but you still need low weight.

    7. Re:Titanium is also very flexible. by Butch · · Score: 1
      > This is why you won't see titanium in kitchen sinks, silverware or anywhere else where the metal needs to be thin, strong, and unflexible.

      Hey, titanium silverware exists. I have a "snow peak" titanium spork. The handle's about .06" thick and definitely sturdy enough. The spoon portion by its shape is extremely sturdy.

      Yes, sporks are the worst of both worlds, but at least this one's titanium.

    8. Re:Titanium is also very flexible. by corey_lawson · · Score: 2, Informative

      Hmm... It depends on the alloy.

      "3/2" Ti alloy is what is usually used in bike tubes, unless it's a Lightspeed, which uses "6/4" alloy in some of its frames.

      The Ti alloy for glasses is an alloy that doesn't stay bent.

      And the Ti tubes in bike frames, especially road bikes, can be breathtakingly thin. Cycle Sport recently did an article on a bike that the downtube was almost as thin as a soda can, in the middle (the ends are internally butted, i.e, thicker), and flexible (i.e, you could push it in with your hand...). And the fitted out bike weighed 15 lbs, with all the lightest weight stuff they could put on it.

      Bike frames are insane compared with where they were 10 or even 5 years ago, thanks to Cannondale, Trek, Kestrel, Klein, Lightspeed and Merlin, et al., not only with newer steel alloys, but also with the newer aluminum alloys, titanium, and carbon fiber.

    9. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      would that be a motherfuckin' spork?

    10. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      This is true some Ti is very flexable when cut into small strips, but it also depends on a lot of things. For instance, rarely do you see pure Ti anywhere, but if you make it with certin other elements the alloy's properties can be talored to your spacific needs... UNS number M11311 is an alloy of Ti and it has much different properties than M13310, the first one is made in a different way thus isn't as hard as the second alloy. if you are really intesetd in Ti you should look it up in some materials books. it is really interesting and has some pretty amazing properties. -=gabe albert=- -=The worlds fastest and highest flying plane (sr-71) is made almost totally on its outer surface of a Ti alloy, fyi)

    11. Re:Titanium is also very flexible. by Bill+Barth · · Score: 1
      Here's a place you can buy all the Ti cookware you'll ever need (for your backpack)!

      --
      Yes...I am a rocket scientist.
    12. Re:Titanium is also very flexible. by Wyatt+Earp · · Score: 2, Interesting

      I have Titanium silverware.

      I got a set of Ti sporks, great for pasta and anything with rice or slippery seafood in it.

    13. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      Titanium is very flexible because it's modulus of elasticity (aka Young's modulus) is 1/2 of steel's. That means a titanium part will bend twice as much as a steel part, of the exact same size and shape, under the same loading conditions.

      However, titanium can have a yield strength 2 or 3 times greater than steel (depending on the type of steel), which means it can handle a larger load before it fails.

    14. Re:Titanium is also very flexible. by dhovis · · Score: 5, Informative
      Oh Boy.

      Puts materials scientist hat on

      The TiBook is made from commertially-pure (CP) Titanium. This is basically an unalloyed grade and is very weak relative to the better 6-4 (6%Al-4%V) "aircraft grade" Titanium alloys.

      This is the thing. Apple chose Titanium more because it was sexy than anything else. You see a lot of things advertised as "Titanium", and often times the Titanium plays no important role in the product. There are some golf balls out there that has some Titanium in one of the resins close to the core, but the Ti is not in metal form, and is really only there in minute quantities.

      In fact, sometimes titanium overshadows everything else there. One of the responses mentions "Titanium" glasses frames that are very flexible. Those are not pure titanium. They are a 50-50 alloy of Titanium and Nickel. It is a "shape-memory alloy" which has the ability to deform easily by realigning the crystal structure when bent! and then shifting the crystal structure back when the stress is removed. They are way cooler than just titanium. They have been precision engineered to be superelastic.

      Titanium may be sexy, but it is not always the whole story. The marketing people often latch on to it, but as it becomes more common (and it will), it will start to lose it's allure. A large part of the cost of titanium is in refining it from the ore, and I've heard about a few developments that might bring it closer to the cost of aluminum in that respect.

      --

      --
      The internet is the greatest source of biased information in the history of mankind.

    15. Re:Titanium is also very flexible. by C_nemo · · Score: 1

      i think you've also got to consider the cross section of the TiBook and the bike. the TiBook would suffer from reduced carrying capacity due to deformation and a *very* large bredth(pardon my english don't know the english jargon). the bike would be quite happy with the (near)circular shape of its braces.

      as for alu the 7000 seies(don't know of the 8000 though) have a tensile streght of about 600MPa, and itanium alloys 900MPa++

      (please enlighten me what is the Mo part of Cro-Mo?)

    16. Re:Titanium is also very flexible. by tswinzig · · Score: 2

      The only thing it has going over steel in these cases is buzzword compliance and price (if it's more expensive, it must be better!)

      Actually in the case of metals, the cost is usually related to how rare the metal is (i.e. how much higher demand is than supply), and/or how much it costs to form it (in the case of steel).

      --

      "And like that ... he's gone."
    17. Re:Titanium is also very flexible. by Cuthalion · · Score: 1

      I believe that titanium tends to be springier than steel. So while it's easier to bend, it likes to bend back. That's why my glasses frames and your mountain bike are made out of titanium. They're likely to be forcibly deformed, which is fine, but as long as they return to their original shape, who cares?

      Someone who knows more about this, correct me if I'm wrong.

      --
      Trees can't go dancing
      So do them a big favor
      Pretend dancing stinks!
    18. Re:Titanium is also very flexible. by 56ker · · Score: 3, Funny

      Prehaps the tit in titanium makes it the reason why the marketing people latch on to it - just my tuppence.

    19. Re:Titanium is also very flexible. by Panaflex · · Score: 2

      molybdenum IIRC

      --
      I said no... but I missed and it came out yes.
    20. Re:Titanium is also very flexible. by davmoo · · Score: 2

      Of course Apple used titanium because it was sexy. I've never seen Apple push their products any other way in the last 10 - 15 years. They show the fancy shapes, they show the neat transparent colors, and they push their machines because they are "different".

      Instead of showing me how its "sexy" and "different", their advertising should show me how its "better than a PC" and I might go buy one.

      Now, back on topic...

      I have a couple of pairs of eyeglasses with titanium frames. Most expensive frames I've ever bought. And the best damned frames I've ever bought. I'll never again buy frames made of anything else. They don't crack and turn funny colors like plastic frames, and they don't corode and turn my skin green like traditional nickel-based frames. And combined with nice modern polycarb lenses I bet they don't weigh a tenth of what traditional frames with glass lenses weigh.

      --
      I want a new quote. One that won't spill. One that don't cost too much. Or come in a pill.
    21. Re:Titanium is also very flexible. by aluminumcube · · Score: 1

      It all depends on how you engineer the Titanium parts, just like any other metal. You wouldn't crush a can of Coke and then wonder about the validity of building aircraft parts out of aluminum after all.

      Not only is the Ti that Apple uses of a fairly low grade, but they use Ti as covers really, not structural parts. The frame of the TiBook is actually injection moulded plastic with lots of carbon fiber strands to give it a fair amount of strength (not the sexy race car/space shuttle carbon fiber matrix work that has the cool woven look about it, but CF none the less). Had Apple milled the frame from a billet of Titanium, you could put the end of a TiBook in a vice and stand on it if you wanted.

      Unfortunatly, the marketing folks who have latched onto Ti have drivening the engineering teams to cheep down the use of the material to a point where stamped Ti covers and that junky 'Metaloid' stuff (plastic with a high content of metal dust so it looks and feels like metal to the touch, but is as easy to manufacturer and has the strength of injection moulded plastic).

      At my old company, we made machined aluminum enclosures for PDAs (shameless plug; Dave Design) and we experimented with milling a few Ti enclosures. They would take 16 hours on the machine (compared to 3) and go through tools 20x faster then Al, but they would have been very cool. Anyone want a CNC machined Titanium Handspring Visor?

    22. Re:Titanium is also very flexible. by oyenstikker · · Score: 2

      Yes the thickness and alloy have an effect, but the reason you can make a mountain bike and not a computer is a matter of shape. Circles, or even better, and probably what your mountain bike frame cross section would look like if you cut it, ellipses, are much stronger than a straight sheet.

      Take a sheet of paper, and hold it by the end. It flops over. Roll the paper into a circle, tape it, and hold it sideways. It stays out.

      I suspect that his bike had a circular cross section, while your more expensive titanium one had an elliptical cross section. Your frame was stronger because of that, and his broke.

      (mechanical engineer posing as a computer geek)

      --
      The masses are the crack whores of religion.
    23. Re:Titanium is also very flexible. by antic · · Score: 1

      You are not their target audience. They're marketing to people who want "sexy and different", not just something "better than a PC".

      Many upper tier car brands are marketed on prestige (leather seats, styling of small details such as lights, etc), not on fuel efficiency, engine power, etc.

      --
      'Thats they exact same thing a banana wrench monkey.'
    24. Re:Titanium is also very flexible. by lukesl · · Score: 1

      I used to make some knives and things out of titanium alloys, and I worked with a few of them. Unalloyed titanium is closer to aluminum in strength and weight than it is to steel. Even titanium alloys are not nearly as strong as a piece of good steel the same size and shape, they're just a hell of a lot lighter (and rustproof). However, I made a friend a set of the 6-Al-4-V alloy wrist spikes when I was less "mature," and after sending them away to get them properly heat treated, their strength and weight baffled anyone who would pick them up and try to bend them. However, the original poster is right that the 50-50 nickel-Ti alloy "nitinol" is seriously cool. It's incredibly expensive to make and use, and I think it's pretty heavy, but you can do stuff like take a wire of it, dip it in cold water, then twist it into any shape and it will stay like that. Then you can dip it in hot water and it will go back to its original shape.

    25. Re:Titanium is also very flexible. by b_pretender · · Score: 5, Informative
      This is the thing. Apple chose Titanium more because it was sexy than anything else. You see a lot of things advertised as "Titanium", and often times the Titanium plays no important role in the product. There are some golf balls out there that has some Titanium in one of the resins close to the core, but the Ti is not in metal form, and is really only there in minute quantities.
      Titanium Dioxide, commonly referred to as rutile, is a form of titanium. This is commonly found in most white pigments and dies. Chances are, the white golf ball has rutile, and thus titanium, in the dyed plastic coating. Gold balls are usually white, and I wouldn't be surprised if most of them contained rutile.

      Kitchen sinks, stoves, refrigerator, bath tubs, many have a porcelain coating and rutile is the whiteness in the coating. Even your green stove has a white rutile base prior to adding green pigment.

      That being said, I agree that structurally, it would have been better to use steel or alluminum for the case of the PowerBook. However I own a powerBook, and, although flexible, I prefer it's titanium, although polished aluminum would be cool too.

      The coolest thing about titanium, that often get's looked over is its resiliancy. It makes it ideal for applications where steel and aluminum are useless. Look at bicycle frames, for example. Steel frames have been around for years and they have been optimized to be ultralight, strong, yet flexible enough for a comfortable ride. Aluminum came along, and although lighter than steel, it made for a rigid stiff frame and a toothshattering bike ride. The *design* of the aluminum frames could have been altered to allow for more resiliency, but the problem with aluminum is it fatigues and breaks if it flexes to much, so redesigning the frame to be more flexible was out of the question. Fortuneatly, suspension bicycles need a high stiffness in order to keep hinges/shocks/etc. lined up straight, so aluminum is ideal for this purpose.

      Titanium, although not as strong as steel and not as light as aluminum, offers resilience. The first Ti mountain bike frames were awful, built similar to their steel counterparts, and compared to riding a wet-noodle rather than a bicycle. Over the years, the design of Ti bikes has caught so that the frames are resilient in all of the right places, while still remaining sturdy in the other places. Some frames have even used this resilience as the suspension and put a damper/shock into the frame to allow for suspension travel and damping in a metal frame with NO hinges.

    26. Re:Titanium is also very flexible. by zeno_2 · · Score: 1

      The springier quality of ti is probably one of the things they like about mountain bike frames, from maybe a technical, i make mountain bike frames and I think its cool type of thing. Most mountain bikers see a titanium frame as strong and light, and thats about it, at least the mountain bikers that i ride with.

    27. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0
      The *design* of the aluminum frames could have been altered to allow for more resiliency, but the problem with aluminum is it fatigues and breaks if it flexes to much..
      Actually, any metal will fatigue and break if the stresses are too high in the part. Titanium is not immune to fatigue.
    28. Re:Titanium is also very flexible. by Zeio · · Score: 3, Insightful
      Uncoated and unalloyed metals are of limited use in general. A pure gold ring will fold quite easily if pressed between your fingers. It must be alloyed with Copper to make it reasonable.

      I find that people who don't use alloyed titanium and instead use pure or cheap alloys annoying, because sex appeal is not very important in a functional unit.

      As far as interesting metals go, Platinum and Iridium are far more interesting and "sexy". Iridium makes radiant salt and complexes, and both of these metals are very "noble," resisting tarnish. I would think a titanium ring for a wedding band as a trite piece of junk personally.

      I have personally seen a forged iridium platinum ring. It was striking. Far better than gold, I think.

      There is also an alloy of steel and gold, gold steel, which is a very curious blue color.

      Alloys are an awesome field, I recently read an article about Damascus steel, and that it has *finally* been recreated.

      I think that the statement that Titanium is the sexiest metal is the furthest thing from the truth - its interesting, its useful, but not sexy. Unless the Russians have recently began to set the sex appeal standard in the world ;p.

      Note that the Alfa class subs the Russians use are able to go several times deeper than a Seawolf class. The Alfas are made from titanium and can go over 4,000 feet deep.

      I have provided a link FAS, which shows the real world implications of Titanium and Steel strength. This is also manifested in that fact that because the Russians have a plethora of Titanium, they are able to make cobra-maneuver capable jets like the MiG-29 and Su-27, Su-37, Su-everything, . Titanium is not for sex appeal, its for strength when alloyed with the right things. Even though the Russian planes are more acrobatically capable, Avionics, JSTARS, and AWACS makes the dog fighting concept almost entirely obsolete in modern warfare.



      A submarine's hull is normally constructed of steel, or exceptionally of titanium. Special High Yield [HY] steel alloys have been developed to increase the diving depth of submarines, although the improved depth performance of these alloys imposes a price of increased fabrication challenges. These special steels are denominated by their yield stress in thousands of pounds per square inch -- thus HY-80 steel has a yield stress of 80,000 pounds per square inch [corresponding to a depth of 1,800 feet], HY-100 a a yield stress of 100,000 pounds per square inch [corresponding to a depth of 2,250 feet], and so on.

      During World War II, American fleet submarines normally operated at a depth of 200 feet, though in emergencies they would dive to a depth of 400 feet.
      Post-War American submarines, both conventional and nuclear, had improved designs and were constructed of improved materials [the equivalent of "HY-42"]. These boats had normal operating depths of some 700 feet, and a crush depth of 1100 feet.
      The Thresher, the first American submarine constructed of HY-80 steel, reportedly had a normal operating depth of 1,300 feet, roughly two-thirds the crush depth limit imposed by the HY-80 steel.
      The Seawolf, the first American submarine constructed of HY-100 steel, is officially claimed by the Navy to have a normal operating depth of "greater than 800 feet," but based on the reported operating depth of the Thresher, it may be assumed that the normally operating depth of the Seawolf is roughly double the official figure.
      The Soviet Alfa submarines, constructed of titanium, reportedly had an operating depth of nearly 4,000 feet
      .



      Baxter.
      --
      Legalize the constitution. Think for yourself question authority.
    29. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      Yes, but the stresses from bicycling are so much lower than Steel and Titanium's yield levels that fatigue is not a problems for them unlike Aluminum.

    30. Re:Titanium is also very flexible. by VivianC · · Score: 2

      I'd like to see a picture of that bent aluminum frame. Steel and cro-molly frames will bend. Aluminum will not bend but crack. In my four or so years with the Quick and the Dead MTB Racing Team, I never saw an aluminum frame bend.

      --
      Viv

      Gmail invites for ip
    31. Re:Titanium is also very flexible. by guttentag · · Score: 2
      I had a friend in Jr. High whose parents bought him a pair of those Nickel-Titanium glasses because he kept breaking the others.

      The day after he got them he was showing me how elastic they were. "See, I can bend it like this and it changes back," he said, folding one end over itself.

      "That's really cool," I said. "So the whole frame is like that?"

      "Yeah," he said, twisting them into a pretzel-like shape, when SNAP! He had to hold his glasses in place for the rest of the day to use them.

      He would make a great QA Engineer.

    32. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      For most applications and so long as forces stay under the part's yield strength, steel can be assumed to be immune to failure from fatigue. Typical AL alloys can only withstand about 5E8 cycles at 1/3rd it's yield strength. The more common titanium alloys can withstand about the same number of cycles at 1/3rd it's yield stress (which is about 4 or 5 times the yield stress of AL alloys).

    33. Re:Titanium is also very flexible. by jchristopher · · Score: 1
      For most applications and so long as forces stay under the part's yield strength, steel can be assumed to be immune to failure from fatigue.

      Not for bicycles. Trust me - I've worn out several steel frames. Not from a crash or other damage, but just from "wear".

      One day you look at it and find that the steel has cracked - from fatigue.

    34. Re:Titanium is also very flexible. by YrWrstNtmr · · Score: 2, Informative

      Bike construction depends mainly on design and geomotry, rather than material.

      Alu, CroMo steel, Ti, Carbon fiber...any can be made great, or any can be made a noodle.

    35. Re:Titanium is also very flexible. by YrWrstNtmr · · Score: 1

      Ti eyeglasses are weak at the joins between parts. I've broken my last two pair at the bridge.

      freakin $400 a pop, too

    36. Re:Titanium is also very flexible. by Com2Kid · · Score: 2

      However, the original poster is right that the 50-50 nickel-Ti alloy "nitinol" is seriously cool. It's incredibly expensive to make and use, and I think it's pretty heavy, but you can do stuff like take a wire of it, dip it in cold water, then twist it into any shape and it will stay like that. Then you can dip it in hot water and it will go back to its original shape.


      That is . . . . Extremly . . . . Cool.

      How much does a wire of that material cost? Could a plain old consumer get it or is it special order only?

      Holy crud, the artists could have some serious fun with that, LOL!

      Hey, would a block of it be moldable? If it was say worked with inside of a refridgereated area or even inside of a walk in freezer could a thick brick of it be molded in a simular fashion or would that not work?

    37. Re:Titanium is also very flexible. by ipfwadm · · Score: 1

      Aluminum came along, and although lighter than steel, it made for a rigid stiff frame and a toothshattering bike ride.

      I own a Cannondale road bike made out of aluminum, and I don't consider it to be a tooth-shattering ride. Of course Cannondale also uses hourglass-shaped seat stays that allegedly smooth out the ride. As for mountain bikes, I've never personally ridden an aluminum one, but suspension makes any such tooth-shattering properties irrelevant.

      Fortuneatly, suspension bicycles need a high stiffness in order to keep hinges/shocks/etc. lined up straight, so aluminum is ideal for this purpose.

      If that were the primary reason, aluminum would only be used in mountain bikes. The great thing about the stiffness of aluminum is that the frame doesn't flex, and therefore all your energy is transferred directly to propelling the bike, rather than flexing it. You alluded to that with your comment about Ti bikes being like a wet noodle. And in case anyone is wondering why a little bit of frame flex matters, consider that bike races are won and lost by mere seconds all the time.

    38. Re:Titanium is also very flexible. by dattaway · · Score: 2

      The ever common form of titanium: Titanium Dioxide. Its cheap and everywhere. Just about anything white as it is a strong pigment close to phosphorous. All white house paints, Liquid Paper, also food grade titanium dioxide is in toothpaste, ice creams, candies, etc... just look in the ingredients.

      You can buy raw titanium dioxide in the 50lb bag and it is some nasty stuff to clean up if spilled. Everything gets white and it takes lots of sweeping, soap, and water.

    39. Re:Titanium is also very flexible. by Ma_Ma_Monkey · · Score: 1

      Nah. To change nitinol into a shape you have to heat it under a flame, not under cold water. After it's tempered essentially you bend it into an shape and put it in hot water, then it goes back to it's original shape. I just used the stuff about 3 weeks ago in a chem lab.

    40. Re:Titanium is also very flexible. by Catmeat · · Score: 1
      Nitinol is quite widely available from the
      sort of places that supply cool scientific novilities. I got a length from the shop in the
      London Science Museum a couple of years back.


      Somebody was even selling a bathtub toy boat that
      had a nitinol wire 'motor'. You put an icecube in
      a slot in the boat and the temperature difference between that and
      the bath water allowed the wire to function as a
      crude heat engine.

    41. Re:Titanium is also very flexible. by armb · · Score: 2

      > > steel can be assumed to be immune to failure from fatigue.

      > Not for bicycles. Trust me - I've worn out several steel frames.

      Decent quality ones? Anyway, it is possible to design a steel structure that _won't_ fatigue under a specified load (though the fatigue strength isn't generally as high as the yield strength, so a steel bike designed for absolute minimum weight could have a fatigue limited life (and so could a poorly designed or poorly welded one)), but aluminium has no lower limit - the lower the stress, the longer the life, but eventually any cyclic load will fatigue aluminium.

      Articles on bicycle metallurgy:
      http://www.sjsu.edu/orgs/asmtms/artcl e/articl.htm

      --
      rant
    42. Re:Titanium is also very flexible. by Decimal · · Score: 2

      I had a friend in Jr. High whose parents bought him a pair of those Nickel-Titanium glasses because he kept breaking the others.
      The day after he got them he was showing me how elastic they were. "See, I can bend it like this and it changes back," he said, folding one end over itself.

      "That's really cool," I said. "So the whole frame is like that?"

      "Yeah," he said, twisting them into a pretzel-like shape, when SNAP! He had to hold his glasses in place for the rest of the day to use them.

      He would make a great QA Engineer.


      Sounds like one friend I have. He did this twice. You think he would have learned after the first time...

      --

      Remember "Bring 'em on"? *sigh
    43. Re:Titanium is also very flexible. by kaptin · · Score: 1

      Titanium is in fact NOT as strong as steel. Looking at the characteristics of both materials you can see that Ti has an Ultimate Tensile Strength on the order of 220 MPa (for non-alloys) while steels are on the order of 330 MPa (often higher in better grade steels). The "sexiness" of Ti comes into play with it's low density of about 4.5 g/cc (0.163 lb/in^3). This is why it is so valuable to the airline industry where weight is everything.

      Ti is also a pain in the ass to work with because it does not dissipate heat really well so your cutting surface gets work hardened really quickly. This is why steel is also so popular; cause of its ease of machining.

      --
      If water were beans, I'd be 70% beans.
    44. Re:Titanium is also very flexible. by jchristopher · · Score: 1
      Decent quality ones?

      Absolutely. 75% of the people on the team I used to ride with had broken a steel frame at one time or another. They just wear out after a while.

    45. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0
      Prehaps the tit in titanium makes it the reason why the marketing people latch on to it - just my tuppence.

      Why o why didn't they name is "titassium"?

    46. Re:Titanium is also very flexible. by Decimal · · Score: 2

      Isn't stainless steel used in kitchen sinks? What is the difference between steel and "stainless" steel?

      --

      Remember "Bring 'em on"? *sigh
    47. Re:Titanium is also very flexible. by d-rock · · Score: 1

      I don't know what it is about Steve Jobs and metal cases... Weren't the NeXT cases machined magnesium?

      Derek

      --
      Don't Panic...
    48. Re:Titanium is also very flexible. by rbird · · Score: 1
      Stainless steel has high quantities of chromium (something like 10-20%, depending on alloy) and nickel (5-10%).

      Bob

    49. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      Steel bike frames are generally welded 4130, which gets very brittle if it is not properly stress relieved after welding. Most bike manufacturers do not perform this critical step due to the fact that it will tweak the frame enough to mess up it's alignment.

    50. Re:Titanium is also very flexible. by blair1q · · Score: 2

      You are correct sir.

      This came up in the late '80s when Titanium balls first appeared.

      The Titanium in the name refers to the Titanium Dioxide in the white pigment. They don't tell you that, though. You're supposed to just stand there feeling better about the $4 you just put in the lake, knowing it would have been 18 feet from shore instead of 11 if you'd only spent $2.

      --Blair

    51. Re:Titanium is also very flexible. by Anonymous Coward · · Score: 0

      EXCELLENT links!

    52. Re:Titanium is also very flexible. by Millyways · · Score: 1

      I noticed the other day that an electronics outlet here in Australia has started selling platinum battery terminals. This has got to be the most stupid thing I have every heard. I am sure the only reason you would choose Platinum over gold or heaven forbid copper would be its much higher price tag.

    53. Re:Titanium is also very flexible. by Art+Deco · · Score: 1

      I got some flexon frames when they first came out. The woman fitting the frames told me that indeed I could indeed wind them around my finger and they would snap back to shape just like in the commercial but there was a limited number of times I could do this before they would snap. The frames were like $500 dollars and in spite of their not breaking the hinges did become spindly in 3 years so I went back to cheap $90 stanless steel frames and replace them when they break.

    54. Re:Titanium is also very flexible. by Art+Deco · · Score: 1

      The idea that steel bicycle frames get soft with use is a myth. Steel does not change its modulus of elasticity over time and use. Of course it will flex more when it cracks but at the point of immenent failure the crack will be noticible other ways; the one steel frame I broke (an old Bridgestone road bike) started creaking. Unfortunately I was looking in the wrong places for the crack and missed the fact that the seat stay was cracked at the seat cluster until it broke. My other two frames; an early '70's Gitaine and an '84 Cinelli are still going strong, the Gitaine has been my town bike and has jumped millions of curbs and thousands of trips home loaded with groceries (I didn't own a car for years and used my bicycle for everything) and the Cinelli has many tens of thousands of miles on it and a couple seasons of racing. Yes it is possible to break a steel frame; my Bridgestone did break but my other frames have taken an unimaginable amount of abuse and have held up wonderfly; my Cinelli even has the fully intergal fork crown that has a reputation for breaking. It is unknown if the new generations of steel (853, Foco, etc.) will be as durable as the past steels (531, Columbus SL, etc.). Someone looking for a frame for a lifetime is still best served by a brazed steel frame since brazed steel frames are repairable while aluminum, titanimum and TIG welded steel frames generally aren't.

  6. sci-fi reference by Anonymous Coward · · Score: 0

    of course, you'll all remember that titanium (or an alloy of it) is used for internal structures on the Enterprise-D

    1. Re:sci-fi reference by Zenjive · · Score: 2, Interesting

      that titanium (or an alloy of it) is used

      I remember somethign from high school science class about plain old titanium being quite brittle, you can actually crumble titanium ore with your hands. The only thing that makes it twice as strong as steel is making an alloy out of it with some other metal(s). The thing I never found out is: what other metals do you mix it with to make the alloy?

      --


      A vacuum is a hell of a lot better than some of the stuff that nature replaces it with. - Tennessee Williams
    2. Re:sci-fi reference by Anonymous Coward · · Score: 0

      Aluminum is a common metal to alloy it with. Do a Google search for more information.

    3. Re:sci-fi reference by Anonymous Coward · · Score: 0

      allium (like foil)
      and maganizem (like road flares)
      do a google search on it your learn loads.

    4. Re:sci-fi reference by jejones · · Score: 2

      Sexy or not, anything that makes it possible for Fuzzy fuzzy holloway to survive is OK in my book!

    5. Re:sci-fi reference by Mandelbrute · · Score: 2
      you can actually crumble titanium ore with your hands.
      Yes, it's called sand. One important source of titanium is the Rutile and Ilmenite in beach sand.
      The only thing that makes it twice as strong as steel is making an alloy out of it with some other metal
      It is as strong as most steels, but a great deal lighter. As with most metals, it has far better mechanical propeties if it is mixed with something than if it is pure. You have a mixture, a "solid solution", and the other material dissolved in it adds to the strength by making it more difficult to push the crystal structure out of shape - since there are other atoms of a different size in the way. If you have enough of another metal, you can get a lot of small particles of a different composition forming, and these can also make it more difficult to damage the material.
      The thing I never found out is: what other metals do you mix it with to make the alloy?
      It depends on what you want to use it for. If you want to make cutting tools, then titanium and nitrogen alone are good (ie. the gold coloured coating on a lot of high speed cutting tools). If you want a structural material then Aluminium, Vanadium and Chromium are good things to add. For turbine blades or processing hot and nasty chemicals look up "Nimonic 80" on the net - much better stuff has been developed over the last 30 years, but there is a lot of info about the old established stuff.
  7. Sexier by Beliskner · · Score: 2, Insightful

    A sexier metal is Selenium. Runner up is Elerium-115

    --
    A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    1. Re:Sexier by C_nemo · · Score: 1

      isn't selenium the compound which the guys in(the awfuly bad movie) Evolution used to save the earth by jamming it up the **s of that giant alien.

    2. Re:Sexier by SuiteSisterMary · · Score: 2

      Elerium is also VERY profitable when you need one more base to interdict those nasty harvesters and what not. Nothing cuts into your funding faster than failing to stop a terror mission. MUCH cooler than zbrite.

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    3. Re:Sexier by amuro98 · · Score: 1

      You weren't supposed to SELL the Elerium - it was a required component to enable you to go to Mars and win the game...

    4. Re:Sexier by SuiteSisterMary · · Score: 2

      Yeah, but if you were doing enough interdictions, you had tons and tons of it. What was it... plasma cannons were huge profit? Build em and sell em and you were rolling in it. Somebody should take the Freedom Force engine and turn it into a sweet remake of X-Com: Enemy Unknown.

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    5. Re:Sexier by Beliskner · · Score: 1
      isn't selenium the compound which the guys in(the awfuly bad movie) Evolution used to save the earth by jamming it up the **s of that giant alien.

      I said that Selenium was sexy, I didn't say that it wasn't homosexual ;-)

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    6. Re:Sexier by gewalker · · Score: 1

      Phfft. None of these are nearly as sexy as a high-credit limit piece of plastic.

    7. Re:Sexier by Beliskner · · Score: 1

      Take your overpowered Pentium 4s and Athlons and shove them. I'm talking about the good old days when code was efficient, and games consumed minimum CPU, didn't need SSE2 nor even MMX, I'm talking about UFO: Enemy Unknown 1994 back in the days when v1.0 was totally stable (as this one is)

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    8. Re:Sexier by nelsonal · · Score: 1

      I always stuck with the Laser cannons you could put on the interceptors, and hoarded my elerium for a rainy day. I think it was the laser cannon that had the best profit per hour of engineering time. I wasted more time playing X-Com than about any other thing computer related for nearly two years. I finally stopped when my dreams included that flashing alien indicator in the bottom right. Its the only game that I got scared playing, the first night terror mission with etherials.

      --
      Degaussing scares the bad magnetism out of the monitor and fills it with good karma.
    9. Re:Sexier by nelsonal · · Score: 1

      Until you get an am-ex black card, it don't mean a thing. The black card (Centurian Card is American Express' highest card you have to be invited, and there is no credit limit, they will find anything for you, you get free first class upgrades, room upgrades, and European cells phones when you travel to Europe.
      The catch one of several qualifiers is to spend more than $150,000 per year on their current american express cards.

      --
      Degaussing scares the bad magnetism out of the monitor and fills it with good karma.
    10. Re:Sexier by SuiteSisterMary · · Score: 2

      It might have been stable, but it also used timing loops. Bad move.

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    11. Re:Sexier by Beliskner · · Score: 1

      True. On my 386SX-25 the game was normal, but when I ran it on my Dell P2-450 even the slowest settings were way too fast, and I had no turbo button. On my 386SX-25 I could even tell when the aliens spotted me because the game noticeably slowed down as the algorithm for computing AliensCanSeeYou_WilltheyRetaliate? started running. This allowed me to triangulate their position. Cool stuff.

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    12. Re:Sexier by SuiteSisterMary · · Score: 2

      Yup, exactly. Why, even on a P200, it's just not as fun to use the guided missile; you set up a lovely little course for it, so it flies all over the map, through a window, orbits the alien, then gives him a taste of what it's like to be anally probed; and ZOOM! it's over in a split second.

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    13. Re:Sexier by Beliskner · · Score: 1
      Tell me about it. I decided to test the "maximum 6 waypoints" on the fusion ball cannon (the guided RPG weapon). Those nasty telepathic aliens invaded Rio de Janeiro with those massive alien robots giving support. Some of my team went berserk so I zapped the flying alien. I was out of action points on all the team apart from 2 armed with light plasma guns in a massive warehouse and 1 standing on a roof at the other end of the arena with a fusion ball cannon.

      I told the first guy in the warehouse to move out from behind the crates, as soon as he popped out there was a massive dual-plasma-armed robot standing there. Just in case the robot got a snap-shot off I made him hide behind the crates again, and old the other guy in the warehouse to duck and cover.

      I thought they were goners, but then I remembered the fusion ball dude at the other end of the screen. I *SAVED THE GAME* and started setting his waypoints:

      1. The outside of the warehouse on the 2nd floor where my men had used their heavy plasma to shoot out a couple of panels out of the warehouse wall.
      2. Near the top of the stairs so that the fusion ball curves and doesn't smash into the wall because it has to make a 90-degree turn in like one pixel
      3. The top of the stairs, right next to the wall.
      4. The bottom of the stairs in a small office
      5. As soon as it goes down the stairs it'll smash into the wall in front of the stairs, so it has to be curled again. So I put a waypoint at the wrong end of the office to curl it away from the walls and keep the turn gentle.
      6. Next end of the office
      7. At the bottom of the stairs again (this time it will be going in the correct direction - straight through the door between the bottom of the stairs and the wall. In other words in the small office it's flown a course in-the-figure-of-eight 270 degree turn
      8. Up straight after it goes through the door
      9. Over the heads of my team
      10. Between two high crates
      11. The target - the nasty robot.

      I fired. It went across the screen, through the warehouse wall, turned and went down the stairs, turned and did a wide circle in the small manager's office, went out of the manager's door, went up and over the heads of my team, over the crates, and then it dived downwards into the robot. Even on my P2-450 it took 10 seconds because the course was so complicated. It was so close that one of my team was mortally wounded by the explosion. I managed to evacuate everyone to the transport in time though so (presumably) he was treated at my London, England base. The aliens then sent a battleship to destroy this main base but my dual-laser batteries and gravity repulsor and fusion ball battery destroyed it. I saved the game and took the rest of the day of because I was so pleased with myself. Aaaaaaaah nice.

      What always pissed me off about the game was the linear repair time. It took months to repair a heavily damaged Ultimate Craft. BTW my cousin is in Missuasaga. He's one of those MBA types that /. people diss all the time. He joined IT and then got thrown out on his ass when Wall Street busted the VCs for funding pathetic dot-coms (the /. crew can be just as cruel as the Columbine jocks sometimes). I've heard it's real bad in Toronto - hardcore C++, C kernel hacker class people that used to do coding and sysadmining now working in FutureShop, many from Nortel. Sad when resume "wrote Linux device driver, Masters degree" changes to "70 words per minute, good SATs"

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    14. Re:Sexier by SuiteSisterMary · · Score: 2
      I've heard it's real bad in Toronto - hardcore C++, C kernel hacker class people that used to do coding and sysadmining now working in FutureShop, many from Nortel. Sad when resume "wrote Linux device driver, Masters degree" changes to "70 words per minute, good SATs"
      Yes, it is. My sig has become a feature here on Slashdot; I've had it since, oh, September. I sometimes get a reply to a comment saying 'Geeze, SSM, still haven't found a job yet?' We had a few pretty major places all fold in a very short period of time. Hell, travel down Matheson Street, between, oh, Mavis and Dixie, and you'll see Motorola, Microsoft, Oracle, and something or other else. "These Micronians are completely ignorant of space-war tactics. Their population centers are far to close together to allow them to survive an orbital bombardment." Pretty much sums it up. :-)
      --
      Vintage computer games and RPG books available. Email me if you're interested.
    15. Re:Sexier by Beliskner · · Score: 1
      "These Micronians are completely ignorant of space-war tactics. Their population centers are far to close together to allow them to survive an orbital bombardment."

      Heh, it's obvious you know nothing about Canada ;^). Canada is the country where this is the least true. In Toronto it probably feels like the population is dense, but come to London, England and you'll be roadkill in no time. Even 50 miles away from the city centre the population density and traffic is worse than Yonge St. at rush hour (trust me, I know).

      If you want to survive orbital bombardment then go east on the 401 for 100 miles, turn left at Belleville onto Route 37, then right when the road ends onto Route 7. Continue for 80 miles to Kaladar, a town of 80 people, most of these are farmers that ended up in this count by accident. This town is 200 metres wide, has a gas station, a small convenience store and restaurant inside the gas station, and a hotel which is in fact a poorly disguised barn.

      Remember, living in large cities is vulnerable to orbital bombardment, but living in a place like Kaladar makes you vulnerable to alien abduction. Now tell me honestly, which one is more dangerous?

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    16. Re:Sexier by SuiteSisterMary · · Score: 2

      I've lived in Canada all me life, me bucko. I was referring more to the fact that Toronto is soooooo damn full of high-tech companies, big ones, like Nortel, that one one tanks, the market is crapflooded. I've been to London, and a few other places in England, and I've been to a few large cities in the states, and I've been to Korea. Hell, the only reason I've never gone to Japan is that I'm agoraphobic. Can't stand crowds.

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    17. Re:Sexier by Jhan · · Score: 1

      Oh yes, "UFO: Enemy unknown" for the Amiga... One of the most played game on my A4000 :-)

      The very first time I completed it, I did so in a spectacular manner. I sent a bunch of scouts ahead, leaving people behind every so often to maintain sol relationships all the way. When I finally faced the big SOB, I could finish it with a single blaster shot, *from the entrance*. 5 right angle turns, one of them vertical and *smack*: Elerium-induced nuclear fusion right in the brain sack!

      --

      I choose to remain celibate, like my father and his father before him.

    18. Re:Sexier by Beliskner · · Score: 1
      You get all those armed guards at the elevator portal guarding the brain sack, I just shot a fusion ball up there and boom, all dead.

      BTW did you get to see the finale if you did that, with the brain saying, "Uhhh we actually come in peace"?

      I remember blowing a scout vessel by hitting the main reactor like that, took half my team out with it. Of course I click *abandon game* then *load game* to get back to where I was before (as I did a lot).

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    19. Re:Sexier by Beliskner · · Score: 1
      I'm agoraphobic. Can't stand crowds.
      In that case, Kaladar sounds perfect for you - the only gas station for 150 miles. They make great hot dogs and their fries are incredible, cut straight from the potato such that both ends of every fry have skin on them. However in a town that small if you ever stop liking them you'll have to move house.

      Most people can't stand crowds. You just have to get used to it, like showing Michael Jackson a 100,000 line C++ program and saying, "Find the memory leaks asshole, all you can use is Win32Dasm". Tokyo has a high population, but the edges of Kyoto aren't that bad. They'll probably make it preserved because of all those monasteries sending disciples on 10 year walkabouts.

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
    20. Re:Sexier by SuiteSisterMary · · Score: 1

      Ah, but with me, it's physical. A combination of gastro-esophagal reflux disorder and a touch of what I suspect is nervous nausea means I have real trouble being in crowds or unfamiliar places without wanting to hurl all over the place. Really sucks. Went to see a doctor about it a few years ago; after not being able to explain to them why I was having problems drinking the radioactive chalk mix, and having them put me on Prepulsid, which was then yanked from the market for killing people, I haven't been back. :-)

      --
      Vintage computer games and RPG books available. Email me if you're interested.
    21. Re:Sexier by Jhan · · Score: 1

      [Pile of radioactive dust ending] ...did you get to see the finale if you did that, with the brain saying, "Uhhh we actually come in peace"?

      Oh yes. Which seemed quite odd to me, considering ve should be a smoking pile of radioactive dust at the time.

      About losses, some died, but I kinda figured this was the grand finale, so...

      --

      I choose to remain celibate, like my father and his father before him.

    22. Re:Sexier by Beliskner · · Score: 1
      I played that level over and over and over. Only once nobody on my team died. And that was thanks solely to the fusion ball, perfect standoff weapon, as soon as the enemy was spotted I told my guy to turn tail and run, then called in the fusion ball.

      They used it against me once, on my first move I took my entire team down the elevator, in one room, and the next thing I know - a fusion ball explodes right there. I lose 70% of my team and both hovertanks. Everyone remaining goes berserk, almost the whole screen goes dark and creepy. On that one I had 90% losses when I finished. Nasty

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
  8. Ti wedding rings by farnham · · Score: 3, Interesting

    www.tirings.com carries some great rings. They seem to be the only ones making highly polished ti rings. I'm hoping my fiancee gices me the go-ahead to get one. She unfortunatley has a hang-up about our rings not matching.
    I think the blue titanium oxide looks great. I have questions about the oxides durability in the long run. Fortunatley I don't have to think about the rings durability.
    Does anyone out there have one of these?

    --
    pending committee review
    1. Re:Ti wedding rings by Precision · · Score: 1

      I got mine from Titanium Era. I really like it. I got the twisted platinum inlay one. I haven't however seen the oxide onces..

      --
      - U
    2. Re:Ti wedding rings by sclatter · · Score: 1


      I'd be nervous to wear a Ti ring. It's not uncommon for people to badly jam a finger and have to visit an ER to have the ring cut off. My understanding is that this would be very hard to do if the ring is titanium.

    3. Re:Ti wedding rings by macbort · · Score: 1

      I went with my Fiancée to pick out my wedding band and immediately loved the Ti rings. Being the geek I am, I could think of nothing cooler than a titanium wedding ring. She really liked them too, so that's what I'll be putting on come June. One of her friends thought it was very manly, comparing it to a tractor part...

    4. Re:Ti wedding rings by thelexx · · Score: 1

      "Fortunatley I don't have to think about the rings durability."

      Let me guess, she's really old and really rich right? :)

      LEXX

      --
      "Gold still represents the ultimate form of payment in the world." - Alan Greenspan, 1999
    5. Re:Ti wedding rings by pezpunk · · Score: 1

      my wedding ring is aerospace-grade titanium with two gold raised stripes ... check it out, it looks pretty cool.

      not to mention it can supposedly withstand 150,000 psi of pressure, so if i happen to get run over by a steamroller at least my ring will be fine!

      --
      i could live a little longer in this prison
    6. Re:Ti wedding rings by geekoid · · Score: 2

      I have been looking for a new ring for my wife as a gift for are anniversary. Every Jewlery store I've gone into offers titanium rings of some sort.
      Nice ones to, not those "rings" that are just cut from a piects of titanium pipe and polished.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    7. Re:Ti wedding rings by m0nkyman · · Score: 2

      It'll hold up well. We've been using it in Jewellery for about twenty years, and haven't had a problem. The only downside to a Ti wedding band is that you're hooped f you need it sized.....Stuff burns like magnesium when you try to solder it in oxygen.....

      --
      ~ a low user id is no indication I have a clue what I'm talking about.
    8. Re:Ti wedding rings by Anonymous Coward · · Score: 0

      so did you marry amanda?

      (congrats, btw)

    9. Re:Ti wedding rings by mriker · · Score: 1

      Because it hasn't been mentioned yet, http://www.titaniumrings.com/. They're in Canada too, so any interested Canadians won't have to pay border tax (but would have to pay shitty Canadian tax of course).

    10. Re:Ti wedding rings by Anonymous Coward · · Score: 0

      Ti rings are slightly more dangerous in "accidents" than softer rings. Ti won't break when your ring gets caught (if falling etc) and your finger breaks instead. Injuries with soft rings aren't pretty either though...

    11. Re:Ti wedding rings by burger007 · · Score: 1
      My grandma-in-law lost the the top two thirds of her ring finger when her gold wedding ring caught on the tailgate of her truck as she was jumping down and tore most of the finger off.

      What was that about Ti being bad in accidents? ;)

    12. Re:Ti wedding rings by markov_chain · · Score: 1

      My favorite metals at the moment are iridium and osmium, because aside from being very inert, they are much denser than gold.

      Making jewelry from a light metal like titanium feels like making aluminum trinkets. It seems kind of lame.

      --
      Tsunami -- You can't bring a good wave down!
    13. Re:Ti wedding rings by Elazro · · Score: 1

      My wife and I have both titanium wedding and engagement bands (from www.titaniumrings.com).
      Lovely.

      While we both thought they were cool, my wife was very happy about them - she's a grad student in cognitive psych, and works with MRI's (actually FMRI's). Titanium is, I think, the only metal you can wear around an MRI (in fact, when surgery is done while a patient is in an MRI, the surgeons use titanium scalpels). The Ti/Al alloy seems to share that property, so she doesn't have to take her rings off when she goes to the magnet.

    14. Re:Ti wedding rings by djmitchella · · Score: 1

      One more plug: I got an engagement ring and wedding rings from http://www.boonerings.com. The guy's super helpful, does nice gem settings, and seems to be about half the price of all the other ones.

      The neat thing about Ti for gem settings is that you need to cover far less of the stone up with fixing, so it'll sparkle a _lot_..

    15. Re:Ti wedding rings by z0rak's_Eyeball · · Score: 1

      It's funny that this should come up just now. I'm getting married in June, and have just been through the wedding ring ordeal. I ended up with the titanium band with 18K gold screws around the circumference. It looks positively barbaric from a distance and extremely sharp up close, and the gold screws are for real, they actually work!

      Plus, it's a fitting analog to my current situation: i.e. getting screwed all the way around...

    16. Re:Ti wedding rings by FawQ2 · · Score: 1

      I get nervous breathing oxygen. It is the giver of life. From what I understand, life is the leading cause of death among living things. Why concern yourself with the possibility of a 25,000rpm diamond-wheeled cut-off tool screaming within thousandths of an inch of your fingers? I think they look cool but for the price,... I'll pass. :) Why is anything at all?

    17. Re:Ti wedding rings by SuperQ · · Score: 1

      Yes, he did.. was a great ceremony, I took pictures. Xunil is the best man, and owner of the camera. :)
      We didn't get any shots of the ring. If you look at the different pictures, notice it's nice an sunny before the wedding. Right when people got settled down, clouds poured in overhead, it got windy, started to sprinkle, and thunder. It was a short ceremony.
      Then 5 min after it was over the clouds went away and it was beautiful the rest of the day.

    18. Re:Ti wedding rings by Ed+Sassler · · Score: 1

      I guess my customers are sleeping... Check out ti-dessigns.com if you want to see some real titanium jewelry. I still do plain wedding bands (what the other folks seem to rave about from other titanium jewelers), but when it comes to custom work I have yet to find anyone else who comes close - and I have been looking. Just to be fair, my links page lists most of the other [good] titanium jewelers, if I missed any please feel free to e-mail me and let me know.

    19. Re:Ti wedding rings by Anonymous Coward · · Score: 0

      your right. Ti is not recommended for rings. The finger will have to be removed in many cases.

    20. Re:Ti wedding rings by Kruemelmo · · Score: 1

      heck, wow - i'm just overwhelmed by the obviously enormous number of married nerds here... anyone else NOT married? (sorry for being even more ot)

    21. Re:Ti wedding rings by dohcvtec · · Score: 1

      I don't think anybody needs to worry about them bending out of shape, but mine did get scratched shortly after I got it. I was working on (in) a large press and due to the tight confines my ring kept brushing across the hardened steel tooling. 6Al4V titanium alloy is NOT as hard as hardened tool steel. But in everyday activities, it hasn't been scratched any more.

      --
      -- Never hit a man with glasses. Hit him with a baseball bat.
    22. Re:Ti wedding rings by Anonymous Coward · · Score: 0

      I have a ti pen that has a nice shine to it because of the oil from my skin. Wedding bands would get the same benefit. Even after cleaning it, it still shines.

    23. Re:Ti wedding rings by farnham · · Score: 1

      Where the hell did you get that!
      It sounds bitchin!
      I'm not sure i'd utter you screwed all the way around thing. I might allude to lots of....um... I think her dad reads /.
      great idea

      --
      pending committee review
  9. Titanium Wedding rings by Nermal · · Score: 1

    My wife and I have matching aircraft-grade titanium wedding rings. If you'll allow me the plug, we got them at

    http://artifact.co.nz

    which has some really nice stuff. Plus, we can always make jokes about how if we're ever on a giant underwater rig that's being pulled down in to an abyss, we can use them to hold hydraulic doors open. =:)

    1. Re:Titanium wedding rings by karnal · · Score: 2, Funny

      So you're saying I shouldn't get a titanium cockring?

      I guess that wouldn't be a good idea... (laugh, you know you want to!)

      --
      Karnal
  10. My wedding ring too, and just to be extra geeky... by waytoomuchcoffee · · Score: 2

    I inscribed my wife's initials into it as binary. Just a lot of silver-inscribed dots and lines, no one knows it's binary unless I tell them, and then it's a lot of "umm, ok..."

    No not ascii, there wasn't enough room for 7 or 8 bits each. 5 bits, for 15 dots/dashes. Got my ring from this site (of COURSE I ordered it through the web ;)

  11. I am partially made of Titanium by spookysuicide · · Score: 2, Interesting

    I shattered my wrist a couple years ago, and theybolted a titanium plate to the bone in my wrist. The doctors said it is supposed to stay inside me for the rest of my life. They explained that the lightweight metal was especially well-suited for this purpose, because of it's strength/weight ratio.
    My only complaint is it aches after a hot shower or bath, anyone have any scientific reason for why this would be?

    --
    yes i run a goth/punk/emo porn site.
    1. Re:I am partially made of Titanium by bmongar · · Score: 1

      My only complaint is it aches after a hot shower or bath, anyone have any scientific reason for why this would be?

      Maybe because it expands more with heat than your bones.

      --
      As x approaches total apathy I couldn't care less.
    2. Re:I am partially made of Titanium by mobydobius · · Score: 1

      Well, all metals expand a bit under heat, but I doubt that would be whats causing your aches, unless you take really hot showers!

      In any event, congratulations on being bionic. You are every 8 year old boys dream :-)

      --

      "I like to wear big boy pants."
    3. Re:I am partially made of Titanium by Bill+Currie · · Score: 2

      the aching is likely due to the metal expanding at a different rate to your bones.

      --

      Bill - aka taniwha
      --
      Leave others their otherness. -- Aratak

    4. Re:I am partially made of Titanium by Anonymous Coward · · Score: 0

      You are every 8 year old boys dream ....

      In more ways than one I've been been told :))

    5. Re:I am partially made of Titanium by Anonymous Coward · · Score: 0

      sure I bet it expands and contracts on a diffrent curve than bone.

    6. Re:I am partially made of Titanium by t · · Score: 1
      I've always heard the head-expansion theory but really, has anyone actually gone through the calculations to see what the expansion is for one degree of off body temperature?

      Personally I've wondered if it was due to vibration maybe, the drumming of the shower. It wouldn't resonate the same as the rest of your bones. You said it aches after a hot bath too... Perhaps you could test out whether vibration alone has any affect on the aches? Or perhaps you already know the answer to that one...

      t.

    7. Re:I am partially made of Titanium by RadioheadKid · · Score: 3, Funny

      It's probably due to the fact that you have a titanium plate in you wrist.

      --
      "Karma can only be portioned out by the cosmos." -Homer Simpson
    8. Re:I am partially made of Titanium by kaimiike1970 · · Score: 3, Funny

      It might be from the 'exercise' your wrist is getting while you take those looooong baths and showers.

      --


      Do a google search before posting.
    9. Re:I am partially made of Titanium by Cedric+C.+Girouard · · Score: 2
      My only complaint is it aches after a hot shower or bath, anyone have any scientific reason for why this would be?

      The same happened to me. They initially put in surgical steel, and it turned out my body did not react happily to it. They then replaced it with Ti.

      My uneducated guess about why it hurts when you take a hot shower / bath is most likely due to the fact that your bone take expansion, and that unfortunately, the Ti plate does not... And is very well anchored therefore putting a strain on both bone pieces.

      But then again, IANAMD...

      --

      Marriage is considered capital punishment for the theft of a goat in some third world countries...

    10. Re:I am partially made of Titanium by Anonymous Coward · · Score: 0

      I am too...I just got a HUGE titanium mesh put
      in my head, thanks to the neuro team at county USC, where I was missing a large chunk of skull after a bad accident and brain surgery.

      check how big it is!

      http://home.earthlink.net/~powersthatbe/surgery/ 11 6-1615_IMG.JPG

      professor brockwild

    11. Re:I am partially made of Titanium by scrod · · Score: 2, Funny
      My only complaint is it aches after a hot shower or bath, anyone have any scientific reason for why this would be?


      They're your wolverine claws extending. That wasn't titanium you had implanted in your wrist--it was Adamantium!
    12. Re:I am partially made of Titanium by Inthewire · · Score: 1

      Dude, what the fuck did you DO?

      --


      Writers imply. Readers infer.
    13. Re:I am partially made of Titanium by Gid1 · · Score: 2

      I've got a bloody great titanium scaffold bolted to my spine. My surgeon took out six cartilage discs, chopped up two of my ribs, put the rib bits between my vertebrae, drilled seven titanium bolts into the vertebrae and threaded titanium cable through the heads of the bolts.

      As a result of using titanium, it doesn't set off alarms in airports, etc!

      Incidentally, my parents have palladium wedding rings, as it was the subject of my dad's doctorate. Knowing my dad, I wouldn't be surprised if he hasn't dunked his hand in heavy water...

  12. Denver Art Museum by Tomato3 · · Score: 1

    Take all the DAM pictures you want.

    --
    Beware of he who would deny you access to information, for in his heart he dreams himself your master. -Commissioner Lal
    1. Re:Denver Art Museum by discstickers · · Score: 1

      Please stay with the DAM tour. Mmmm National Lampoon.

      --
      I have a shitty sig!
  13. glasses by Scrameustache · · Score: 2

    My glasses are pure titanium! (the frame, not the glass..duh)

    AND they don't have any screws...they're almost indestructible (that is why I wanted 'em...I'm accident prone).

    + they're super light and they look real good! :)

    --

    You can't take the sky from me...

  14. Ti Wedding Ring? by 4of12 · · Score: 5, Funny

    If you haven't been married for long you probably don't know that sometimes, when people gain weight, the rings start to become, uh, constrictive.

    With a traditional soft gold alloy you can snip the tight ring with a pair of bolt cutters or even wire cutters for thinner gauge rings.

    With titanium, I don't think you'd have such an easy time removing a stuck ring. A cutting torch is not going to leave much of a finger and using a diamond saw, too, could be real tricky with in vivo parts involved.

    Get ready for gangreme to set in, unless you lose a bunch of weight in a hurry or find a good lubricant.

    --
    "Provided by the management for your protection."
    1. Re:Ti Wedding Ring? by Chagrin · · Score: 2, Funny

      when people gain weight, the rings start to become, uh, constrictive.

      Cool. An insurance policy I can take out on my wife!

      --

      I/O Error G-17: Aborting Installation

    2. Re:Ti Wedding Ring? by Tekmage · · Score: 3, Insightful

      Just a followup to this. If/when you get a Ti ring, get in the habit of taking it off at night so it doesn't get stuck.

      My wife got my a Ti-Au combo ring for X-mas; I wear it on my right middle-finger. :-)

      --
      --The more you know, the less you know.
    3. Re:Ti Wedding Ring? by Anonymous Coward · · Score: 0
      Get ready for gangreme to set in, unless you lose a bunch of weight in a hurry or find a good lubricant.

      A good lubricant? :)
      Why not order a free sample just in case?

    4. Re:Ti Wedding Ring? by Anonymous Coward · · Score: 0

      Oh, come on. Probe is better... and you can get it in a pump bottle.

    5. Re:Ti Wedding Ring? by ek_adam · · Score: 4, Insightful
      With titanium, I don't think you'd have such an easy time removing a stuck ring. A cutting torch is not going to leave much of a finger and using a diamond saw, too, could be real tricky with in vivo parts involved.
      Forget power tools, just be patient with a small hand file.
    6. Re:Ti Wedding Ring? by llamalicious · · Score: 2

      Yeah, I don't think I trust myself enough with my dremel to perform a emergency ring removal.
      It'd turn into a finger removal for sure.

    7. Re:Ti Wedding Ring? by 56ker · · Score: 2

      IANAJ (I am not a jeweller) but what happened to good old soap and water? :)

    8. Re:Ti Wedding Ring? by Anonymous Coward · · Score: 0

      A friend of mine had a problem like this. What they ended up doing was putting a tourniquet around the base of his finger and remove the blood from the finger. This shrunk his finger down and the ring came off easily. The doctors then removed the tourniquet and everything was okay after about 30 minutes.

    9. Re:Ti Wedding Ring? by Zathrus · · Score: 1

      This got modded up to 3, Insightful?

      A small handfile isn't going to make a dent in the ring in enough time to matter. You're talking about a ring that is too small for your finger and is constricting bloodflow on both sides. The flesh is going to be swollen around the ring, preventing any kind of realistic filing effort.

      Not to mention that, even if you could, a small hand file (which is generally made of steel) would take more than "patience". It'd take days, since you're using two materials of very similar hardness. Your finger isn't likely to last that long if you've let it go that far.

      Best bet would be to go into a very cold room/environment and hope that enough blood is drawn out of your extremeties to let you take the ring off. Then you get to either lose weight or buy a new ring, because you're not going to get that sucker resized.

    10. Re:Ti Wedding Ring? by CodeShark · · Score: 3, Informative
      Tell me about it. I have a titanium & gold wedding ring, which I nowwear on a pendant around my neck now.

      It took an injury to my left hand with a circular saw -- and a nurse who pulled the ring off while I was unconscious -- so that they could put about 10 stitches in that finger (not counting the 70 or so inside and out on my index and middle fingers) to convince me that Ti Wedding rings are *NOT* a good idea.

      --
      ...Open Source isn't the only answer -- but it's almost always a better value than the alternatives...
    11. Re:Ti Wedding Ring? by madenosine · · Score: 1, Funny

      IDKWPUOAFNPR (I don't know why people use obscure anagrams for no particular reason)

    12. Re:Ti Wedding Ring? by Anonymous Coward · · Score: 0

      Ahh. A medical use for leeches.

    13. Re:Ti Wedding Ring? by PD · · Score: 1

      The answer:

      AOL (Anagrams, Obfuscations, Losers)

    14. Re:Ti Wedding Ring? by Anonymous Coward · · Score: 0

      IDKWPUOAFNPR (I don't know why people use obscure anagrams for no particular reason)

      Karma tyrant psychos.

      (That's "acronyms," sparky :)

    15. Re:Ti Wedding Ring? by laserjet · · Score: 2

      I know your post was a joke, but refering to all the comments we see with obscure anagrams: does anyone else see the stupidity AND redundancy of using an obscure anagram, then describing the anagram immidiately after?

      For instance, TIABOSL (This is a bunch of stupid letters).

      If you need to describe it, you may as well not put your anagram letters down - chances are we won't remember them, and you are just doing more work for no reason at all.

      --
      Moon Macrosystems. Sun's biggest competitor.
    16. Re:Ti Wedding Ring? by 56ker · · Score: 2

      In reply to IDKWPUOAFNPR I'd just like to say FHMOSWK (For humorous purposes, or so we think) - and yes I am the one who posted the joke that started this entire thing off. (makes it start sounding like I swallowed a spider to catch a fly etc..)

    17. Re:Ti Wedding Ring? by banuaba · · Score: 5, Interesting

      When I did volunteer EMS in rural NJ, we had this thing in our rig called a 'ring remover'. It removed rings with a little saw blade, and it was nigh impossible to damage the patient's finger with the cutter. Ti was on the list of metals that it would cut. So I wouldn't be *that* worried.

      --


      Brant

      Argle. Bargle.
    18. Re:Ti Wedding Ring? by Anonymous Coward · · Score: 0


      It took an injury to my left hand with a circular saw -- and a nurse who pulled the ring off while I was unconscious -- so that they could put about 10 stitches in that finger (not counting the 70 or so inside and out on my index and middle fingers) to convince me that Ti Wedding rings are *NOT* a good idea.





      Um... wrong conclusion reached guy. Proper conclusion: Pay attention to what you're doing while using power tools.

    19. Re:Ti Wedding Ring? by Tekmage · · Score: 2

      It's kind of like what happens when a tree grows through a chain-link fence, only with your finger. You get to that point of no return where the finger is easier to remove than the ring. ;-)

      Aside: I already have a permanent "dent" from my engineering ring, which I've had and worn longer than my wedding ring and TiAu ring.

      --
      --The more you know, the less you know.
    20. Re:Ti Wedding Ring? by dattaway · · Score: 2

      I have worked with enough exotic alloys (including radioactive thorium alloys) to know anything can be cut with a cheapo cut off wheel powered by a $50 walmart dremel tool. The precision is remarkable by skilled hands.

    21. Re:Ti Wedding Ring? by styopa · · Score: 2
      A cutting torch is not going to leave much of a finger

      And it isn't going to do as much as you think to the Ti ring. You don't cut Ti with a cutting torch, you can use regular saws if you keep the Ti fairly cold (close to 0 C), but don't expect it to be easy. An oxy-acetaline cutting torch requires getting a puddle of the material to form and then you add large amounts of oxygen. This works really well on steel and iron, if you try it with Al then you will get a big puddle of Al on the floor because it spreads the heat out too quickly. Ti has an amazingly high melting temperature, I think that a cutting torch would have a huge problem with it, which is why they use TIG welding on Ti not oxy-acetaline.
      --
      Disclamer - Opinion of Person
    22. Re:Ti Wedding Ring? by mnot · · Score: 1
      heheh. Well, that brings memories back.

      When we were married in early '96, we went to a local jeweler to get rings made. Ina was just starting to play with Ti, IIRC, and she offered to give it a go for our rings.

      She ended up using Ti tubing, lining the inside with silver and riviting the metals together with gold. This made the inside comfortable; because it's difficult to work with Titanium, she couldn't round the edges very effectively.

      Anyway, cut forward a few months. We're watching the X-Files on a Friday night, and I'm absently playing with the ring.

      Take the ring off; twiddle; put it on. Repeat. Repeat.

      Oops, It's on the middle finger, not the ring finger. *shrug* Will get it of during the commercial break. Commercial break comes, can't get it off. *shrug* Will have a good look after the show.

      Show ends. Wife sees purple finger, is mildly concerned. We tried soap, oil, string, etc., to no avail.

      So, we trip down to the local hospital at about 10pm. The take me in the Emergency room, have a few unsucessful goes at it, and say "no problem, we have a tool for this, it'll take five minutes."

      Whereupon they produce a shiny, metal torture-device looking thing with a sort of a spur and a handle on one end; the idea being that you clamp the end with the spur around the ring and turn the handle to cut it.

      It's a purpose-build ring-cutter. They seem awfully confident about it; apparently, they cost a few grand. We point out that the ring is Titanium.

      "What's that?"

      "Uhh, they make spaceships out of it"

      Two hours and two ruined tools later, the ring comes off. We ended up taking turns with the knob, and passed the time by recounting the X-Files episode's plot.

      Ina laughed at me and proceeded to rivit and weld it back together.

    23. Re:Ti Wedding Ring? by olman · · Score: 1

      You mutilated your hand and still didn't take the lesson from the experience? Sometimes, it's worth the expense to pay an expert.

    24. Re:Ti Wedding Ring? by GigsVT · · Score: 1

      You shouldn't wear any jewerly when working with machines or power tools anyway. Didn't you have any basic safety training, or at least read the manual?

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
    25. Re:Ti Wedding Ring? by flash_48 · · Score: 1

      Your Wrong about the Al, the oxide on steel melts below the steel, whereas on Al, the oxide melts many time higher than the metal itself, 660 vs ~2000C

    26. Re:Ti Wedding Ring? by Hektor_Troy · · Score: 2

      Dude, just learn to put on titanium-mesh gloves when working with stuff like that.

      --
      We do not live in the 21st century. We live in the 20 second century.
    27. Re:Ti Wedding Ring? by jafac · · Score: 2

      naw, that's why god created Dremels!

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    28. Re:Ti Wedding Ring? by styopa · · Score: 2

      I recommend that you don't try to use oxy-aceteline on Al or you will have problems. It isn't a matter of melting temperature it is a matter of conduction (Al has a higher conductivity than steel). Al will spread the heat out fast enough that by the time you have puddle a large portion of the Al, not just area with the heat on it, will start to melt and you will have a mess on your hands. It is possible but it isn't easy.

      It is possible to MIG weld if you have a line that is short enough to handle the Al line feed. There are special guns designed for this. People usually use TIG welding on Al.

      If you don't believe me then go to your local certified welder and ask. I personally just got done learning how to weld. Welding Al, and the problems that occur when trying to do so were very high on the instructors list.

      --
      Disclamer - Opinion of Person
    29. Re:Ti Wedding Ring? by CodeShark · · Score: 1
      *cough* I was paying attention.

      Brain was saying "push the saw to the side after the buck" Spinal cord was saying "protect the head, protect the head!!"

      Guess which one was quicker and you get how the injury occured.

      --
      ...Open Source isn't the only answer -- but it's almost always a better value than the alternatives...
    30. Re:Ti Wedding Ring? by CodeShark · · Score: 1

      Yes, I RTFM. Got complacent, and was lucky the blade didn't hit the ring. Otherwise I might have been looking for a finger out in the llawn somewhere.

      --
      ...Open Source isn't the only answer -- but it's almost always a better value than the alternatives...
  15. Titanium Wedding Rings by Anonymous Coward · · Score: 0

    Check out http://titaniumrings.com. Especially the Fire section.

  16. Calling all Fellas by Liora · · Score: 1

    SWEET!

    Techchicks like titanium bands and silicon "stones" with holograms.

    --
    Liora
  17. "soft"? by Roadmaster · · Score: 2, Informative

    Watches are some of the most common consumer goods available in titanium. Citizen is the largest titanium watch maker in the world.

    A concern with titanium watches is that, while they're light and strong, they also tend to scratch more easily than steel. This is a concern because in time a titanium watch will look more battered than a stainless steel one. Citizen actually claims to have a process to reduce titanium's "softness" (can't recall if it's an alloy or a special coating), thus reducing this problem.

    1. Re:"soft"? by Anonymous Coward · · Score: 0

      Titanium can be hardened by alloying it with different ratios of aluminum and vanadium. Most metals that claim to be titanium are actually a blend of ti-aluminum-vanadium. Especially in bikes.

    2. Re:"soft"? by Anonymous Coward · · Score: 0

      As long as it is harder to scratch than the quartz cover, you won't notice.

      My digital watch made by Seiko will be 20 years old this summer ! :) The scratches on the stainless steel are the least of my worries.

    3. Re:"soft"? by morcheeba · · Score: 3, Informative

      I've had two titanium watches....

      The first was a Wittnauer (I don't think they make it anymore). It was unfinished titanium, and got a lot of scratches during the year and a half that I wore it (it has a 10-year pacemaker battery!)

      The second one is a ventura v-matic watch, and it's had the honor of being on my wrist for 3 years. Usually I get bored of watches, or they get scratched, so that's quite a feat! This watch has a special nitrogen coating that seems unique to ventura (I'd love to see it on non-watch products). The surface has been hardened to the hardness of saphire. Saphire is just below diamond on the hardness scale, and, yes, it scratchs glass. The watch is absolutely scratchless. It has a small ding (.5mm dia) that occured in a hangglider emergency landing (although "survived a plane crash" sounds much sexier!). But, the ding is exactly that - not a scratch. Since only the surface is hardend, the material is still soft underneath and can be dented.

      Although the watch is big (pure mechanical, automatic winder), it's still light. As an engineer, I love the see-through back!! Check out the 3d viewer of it.

      It's a bit spendy, but most of the price is the mechanicals inside. Ok, a good chunk (1/5-2/3) is to the retailer, but most of the manufacturing cost is probably labor.

    4. Re:"soft"? by Roadmaster · · Score: 1
      Titanium scratches easier than most glasses. Of the three most used varieties (sapphire, mineral crystal and acrylic) only acrylic is softer than titanium (gotta love those cheap digital watches which are so scratched you can no longer see the time). Altough both mineral crystal and sapphire are more brittle (IE more prone to breaking when being hit really hard), they're also much much harder (IE not prone to get scratched).


      interestingly, titanium is also more brittle than steel (IE less flexible).

  18. soviet relics by kharchenko · · Score: 4, Interesting

    Back in USSR, for a given quantity of alchohol, you could get pretty neat titanium ware. We had titanium hiking gear such as ovens, climbing hooks, portable shovels, etc. They were considerably better in most ways. Later, in the mid-90s, some "businessmen" were selling bike frames made out of pure titanum. A friend of mine still rides one of those - doesn't rust and very light.

    1. Re:soviet relics by 4of12 · · Score: 2

      titanium hiking gear such as ovens

      They sell it at REI. It's nice and light for backpacking, but pricey.

      I bet it took more than one bottle of good vodka to get a set in the old days.

      --
      "Provided by the management for your protection."
    2. Re:soviet relics by red_crayon · · Score: 2

      pure titanum [sic] is not as stong as the titanium alloy with 6% Aluminum and 4% Vanadium. This is what's usually used when Ti is used as a lighter alternative to steel.

      http://www.ushba.com/tifacts.html

      --
      "Never bullshit a bullshitter" All That Jazz
    3. Re:soviet relics by corey_lawson · · Score: 1

      No, it's usually "3/2" alloy. 6/4 is stronger than 3/2, but much harder to work. Most Ti frames are 3/2. Pure Ti isn't good at all to use for bike frames...

    4. Re:soviet relics by david_bonn · · Score: 1
      A friend of mine who visited the Soviet Union in the early 1980s to do a bit of climbing told quite a few tales about Ti climbing gear. He even brought back an ice axe made of Ti. Very light but it was rather crudely made.

      Of course, nowadays companies like Snow Peak make all sorts of stuff out of Ti, stoves, pots & pans, forks, spoons, and sporks. I even have a spork.

      Grivel makes a bunch of Titanium mountaineering gear, including nicer ice axes than that antedilivian Soviet model I saw in British Columbia in 1982.

    5. Re:soviet relics by TheOneEyedMan · · Score: 1

      After the fall of the USSR, they dumped cheap titanium on the world market. People bought tons of it until somebody realized much of it was radioactive. It turns out that much of it was salvage torn off nuclear missiles!

      --
      Reality is that which refuses to go away when I stop believing in it. --Phillip K. Dick (remove SPAM to email)
  19. Aaaaah Stargate by Beliskner · · Score: 1
    Quite sexy is Trinium (ultra-hard metal), Naqadah (dual purpose weapons grade Uranium and ultra-hard metal), and Naqadrium (ultra-refined weapons grade Uranium) from Stargate SG-1.

    Thor's new advanced space vessels like the O'Neill are made from a Naqadah, Trinium alloy, here's how to build it.

    --
    A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
  20. TI watchbands are functional too. by Nonesuch · · Score: 2
    I finally got a new Seiko watch about a year ago, a simple analog kinetic model with a titanium band. Previously I've worn a big heavy steel-bracelet model.

    Price and 'sexiness' aside, there are some real advantages to titanium watch bands. All of the strength of a steel band, at a fraction of the weight. I've also noticed that this watch doesn't feel as cold in winter.

    I find that Plastic bands do not last, leather bands get sweaty. IMHO, a metal band with a good fit (not too tight, not too loose) works best for me, and they last forever with only minor scratches.

    One drawback -- the dull "grayish" hued TI shows scratches more than my old (shiny steel) band. I like the less flashy look (compared to steel) and the lower weight... I've had plastic "sports watches" that weigh more.

    1. Re:TI watchbands are functional too. by Anonymous Coward · · Score: 0

      I've also got a titanium seiko kinetic that I've worn daily for the last 3 years. I had the same problem with the scratches, and here's a pretty good solution:

      Mix a small amount of ammonia, water, and dish soap in a small container. Use an old toothbrush and polish it up. The scratches (if they're not deep gouges) almost disappear.

  21. Titanium wedding rings by totallygeek · · Score: 3, Insightful
    Be careful about using titanium for your wedding rings (or any ring for that matter). The ring cannot be resized, and is fairly-much useless if your finger grows or shrinks.

  22. Titanium Jewelry for guys by fdisk3hs · · Score: 0

    My father-in-law got a titanium bracelet, linked like a chain, but shaped like... flexible conduit meets a plastic snake toy? This was two years ago in Australia, and they were made and sold locally. I'm not telling him he was ahead of the 'cool' curve by a couple years...

  23. Also blocks EMF pretty well by wazzzup · · Score: 1

    I should know, my TiBook (Apple Powerboook G4) gets less than 100 ft. of reception from my 802.11b wireless router.

    1. Re:Also blocks EMF pretty well by mr100percent · · Score: 1

      The TiBook has the antennae sorta external, note the 2 strips on each side by the front.

  24. What a neighborhood by stoolpigeon · · Score: 2

    Where the aerospace industry is described in such a way,

    "While titanium has its fans, it's still not clear if the metal can break out of the aerospace ghetto..."

    .

    --
    It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
  25. The damn afternoon haze... by OrangeHairMan · · Score: 1

    In the afternoon haze it looked like this:

    The Sexist Metal

    *scratches head* Oh wait...
    Orange

  26. LINKS please! by Anonymous Coward · · Score: 0

    Where can one buy a wedding ring made of TITANIUM???

  27. Re:My wedding ring too, and just to be extra geeky by Anonymous Coward · · Score: 0

    Your wife got a real catch with you..... a real catch!

  28. Titanium wedding ring shopping by goodmanj · · Score: 1

    I looked at a titanium wedding ring in a store the other day. It was the wrong size. A gold ring can be stretched or squashed to the right size in no time, but with titanium, forget it!

    It was cool to a hold a titanium ring in one hand, and a platinum ring of the same size in the other. The platinum ring weighed down my hand like Frodo-in-Mordor.

  29. Titanium wedding rings = more torn off fingers? by IvyMike · · Score: 2

    When I received my order of the engineer ring, one of the speakers mentioned that it's a very good idea to remove the ring while working with machinery, even moreso than with normal jewelry. The stainless steel is much less likely to break than a gold ring, and thus that much more likely to pull your finger off in an industrial accident.

    Then again, a titanium ring helped that dude in "The Abyss", so maybe it has advantages, too.

    1. Re:Titanium wedding rings = more torn off fingers? by stoolpigeon · · Score: 2

      An engineer cult? Who would have thought it?

      Having read some Kipling I've got to wonder if he was talking about combat engineers. Not really the same thing.

      But the kicker is the banged up looking ring for your pinky?

      Kind of a poofta thing I would think.

      Only in Canada.

      .

      --
      It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
    2. Re:Titanium wedding rings = more torn off fingers? by func · · Score: 1

      On the plus side, these iron rings are tops for ripping the cap off a bottle of beer. Blows peoples minds when you do it - very loud "POP" and the cap goes riccocheting around the room. Gotta build up those calluses though - first few times I tried this I ended up with blood all over my freshly opened beer.

      Never used to wear my iron ring till I found out this... :)

    3. Re:Titanium wedding rings = more torn off fingers? by Xamdam_us · · Score: 1

      I don't know if Ti = More torn off fingers but I do know it can happen with gold rings as well. I once had a boss who lost his wedding band finger in an ATV accident. Seems he had a bit too much to drink and decided to "jump" his quad. After he picked himself up off the ground he discovered the missing appendage. Just goes to show anything on the hand of an idiot can be dangerous.

    4. Re:Titanium wedding rings = more torn off fingers? by hashashin · · Score: 1

      An acquaintance cut his finger pretty deeply when his ring got caught on a nail, as he jumped out of a truck. (the bed of the truck had high wooden sides)

      Fortunately his gold ring was already worn pretty thin from years of wear and it broke, and he kept his finger. But these things do happen.

  30. Oops! by quantaman · · Score: 2

    At first I thought the headline was "The Sexist Metal"! When I started reading about aerospace and defence I started wondering if some militant feminist groups had started going after titanium!

    --
    I stole this Sig
  31. used to make the world's coolest building by subgeek · · Score: 2, Interesting

    Ti is also what was used to cover the new guggenheim in bilbao, spain. Frank Gehry is a genius. originally he was going to use stainless steel. but it didn't catch the light quite the right way. then he saw titanium and was sold. he was worried that it costs 2x as much as stainless, but it was ok because it only had to be 1/2 as thick.

    i love the total lack of right angles in that building. simply beautiful.

    --
    you probably shouldn't have read this.
  32. www.metalsmiths.com by sterno · · Score: 2

    I also recommend metalsmiths.com. They do some great work and they do have titanium rings. We got an engagement ring and two wedding bands from them and they were very well done and reasonably priced. My wedding band was titanium with a stripe of gold and my wife's was platinum (and the engagement ring was platinum with an emerald).

    The one caveat I would say is that they do sometimes take a while since it is a small operation, so if you are planning to meet a specific timeline order well in advance.

    --
    This sig has been temporarily disconnected or is no longer in service
  33. I've got Ti wedding rings by Chairboy · · Score: 3, Informative

    My wife and I got married back on March 24, and we are both wearing excellent titanium rings from www.boonerings.com.

    My ring is styled after Ed Harris's ring from The Abyss, and my wife has a pair of helix rings, one that holds a diamond through tension in a spectacular manner not possible with softer metals.

    See: http://www.boonerings.com/large/helixxlite.htm

    In regards to safety, Titanium rings can be easilly removed using cutting tools present in most ERs.

    1. Re:I've got Ti wedding rings by Anonymous Coward · · Score: 0

      i also have a wedding ring from boone rings and highly recommend them!

    2. Re:I've got Ti wedding rings by Anonymous Coward · · Score: 0

      My ring is styled after Ed Harris's ring from The Abyss

      *sigh* Jeezuss Christ - get a life...

    3. Re:I've got Ti wedding rings by Chairboy · · Score: 2

      NEWSFLASH: I am a geek!

      Gosh, read the byline for Slashdot and grab a clue.

    4. Re:I've got Ti wedding rings by pz · · Score: 1

      That would be "compression" not "tension". This
      style mounting is often mis-marketed as a tension
      setting when, indeed, the stone (often diamond)
      is under substantial compression.

      --

      Put my fist through my alarm clock with its ding-dong death inside my ear. - The Blackjacks.
    5. Re:I've got Ti wedding rings by gradbert · · Score: 1
      I recently got a ring from them , but I went for the hammered look one. Besides the inhernet coolness of Ti, I really liked the lightness, especially since I was not used to wearing a ring. Also they were quite affordable mine only cost US$95, which is about what we would have had to pay for a gold band

      One thing I noticed while looking for titanium ring was that most people tended to use 6-4 alloy, with 8-1-1 being an extra cost option. Only one or two people acutally would use pure titanium

      The other thing i noticed was that all the jewelry store would carry at most 3 style of titanium rings and they were always the same 3. The companies on the internet offered a much wider variety of styles

  34. Titanium and Corrosion by Veramocor · · Score: 2, Informative

    Titanium is actually a very reactive metal even more so than Iron.

    Fe = -.440
    Ti= -1.63

    Titaniums corrosion resistance is actually confered to it by the formation of titanium dioxide scales, TiO2 (same stuff in toothpastes go ahead look), the layer slows down the diffusion of oxygen and other oxideizers to the surface of the metal. Much like Chromium does in stainless steel (Cr2O3).

    Is Titanium then the best metal for all corrosive environments? Hell no! Its protection is based on the thermodynamic stability of its scales.

    Put your nice shiny new Titanium in a highly oxidizing and basic environment (look up Pourbaix diagrams if you want more info). Kiss it goodbye. While plain carbon steel would have resisted it since its scales are stable in that environment and a lot cheaper to. Had you used titanium for your reactor thinking it was the best, you my friend would have been fired.

    The moral of the story, there is no one good metal for all applications. You need to consider many factors not to least mention cost.

    --
    Veramocor
    1. Re:Titanium and Corrosion by fdisk3hs · · Score: 0

      Oh... ma... gawd...

      Dude, you wrote that way too fast...

    2. Re:Titanium and Corrosion by Dixie_Flatline · · Score: 2

      This is why, in fact, that welding Titanium (for things like bike frames) is extremely expensive. Titanium must be welded in the presence of a noble gas, otherwise your welds are ruined.

      It IS possible, as well, for the titanium parts that they use in joint replacements to react with other things. While it's extremely rare, I've heard of one case of a woman whose hip corroded slightly, and formed a mean-ass titanium-acid substance that caused her great discomfort.

      Here are some links to beatiful titanium bike makers:

      http://www.merlinbike.com/
      http://www.litespeed .com/
      http://www.sevencycles.com/Main.html

      It'll be the last bike you buy. Not only will it last forever, but it'll probably bankrupt you, too. :)

    3. Re:Titanium and Corrosion by t · · Score: 1
      Isn't the way Ti forms a surface layer of corrosion, thus protecting the metal underneath much like the way Al corrodes? The oxides that form on Al form an airtight seal, thus keeping the insides corrosion free. Whereas steel corrodes more like gangrene.

      t.

    4. Re:Titanium and Corrosion by Veramocor · · Score: 1

      Yes, Al forms alumina.

      Stainless Steel has chromium in it which forms a chromia layer on it.

      The barrier isnt completely airtight it allows oxygen ions to penetrate it but very very slowly. Depending on the metal, corrosion might take place by metal ions diffusing outword.

      Electons are transfered through the oxide layer though holes in the oxide structure (much like semi-conductors!)

      Also Carbon steel, forms what you know as rust which isnt as protective.

      --
      Veramocor
  35. Yeah Titanium's cool, but... by Raveller · · Score: 1

    If they were really hard-core they'd use Airmet steel. (I'm surprised that no one else has hopped on the Airmet wagon. Or maybe I've been reading too much /. Must... control... desire... to... outgeek... <horseshack>Ooh, ooh, ooh! Mr. Kotter, Mr. Kotter!</horseshack>)

    1. Re:Yeah Titanium's cool, but... by Anonymous Coward · · Score: 0

      Airmet is cool shit, Arrow Racing has made bike frames out of it.

  36. Why so expensive by GreyPoopon · · Score: 2

    If Titanium is plentiful, then why is it so blasted expensive? It can't be solely because it's hard to work with, can it? Is it expensive because it's currently only used for "special" applications? If we start using it more, will the cost go down?

    --

    GreyPoopon
    --
    Why is it I can write insightful comments but can't come up with a clever signature?

    1. Re:Why so expensive by bmasel · · Score: 2

      Takes a lot of energy to refine.

      --
      Ben Masel: 51,282 votes for US Senate in the Wisconsin Democratic Primary
    2. Re:Why so expensive by jonerik · · Score: 2

      If Titanium is plentiful, then why is it so blasted expensive?

      According to the Westword article, the extraction process is expensive. From the article:

      The complexity of the manufacturing process is usually blamed for the metal's high cost.

      "They need to find a cheaper way to extract it from the ore," says Ken Gall, professor of mechanical engineering at the University of Colorado at Boulder. "It would mark a large technical advance if that process could be improved."

      One of Timet's competitors invested millions in a new production process that was supposed to cut costs, says Martin, but it was unsuccessful. Research on cheaper ways to create titanium is under way in Europe, but he isn't expecting any dramatic change.

      "There's no breakthrough at hand," Martin says. "There are a lot of obstacles to overcome."

    3. Re:Why so expensive by GreyPoopon · · Score: 1
      According to the Westword article, the extraction process is expensive.

      I guess I should have read the WHOLE article, eh?

      --

      GreyPoopon
      --
      Why is it I can write insightful comments but can't come up with a clever signature?

    4. Re:Why so expensive by ThesQuid · · Score: 2

      There was an article on /. a while back on the potential of cheaper Titanium, "Titanium As Cheap As Aluminum?"

      I wonder if there's been any progress since then. The original story is still on The Economist' site.

    5. Re:Why so expensive by nelsonal · · Score: 1

      Its similar to why that pentium 4 costs 200-600 when the silica inside might have gone for a penny if it were still sand. Its an exmpensive manufacturing process. On a side note, Aluminum was once quite similar in cost, I believe it was Napolion, or one of the kings of France just before the revolution whose personal goblet was made of pure aluminum, lesser nobles got gold or silver.

      --
      Degaussing scares the bad magnetism out of the monitor and fills it with good karma.
  37. wedding ring by numbuscus · · Score: 1

    I have a titanium wedding ring. I got it because, well, it's cool and because I thought it would last forever. While it still looks good after 8 months, but it did scratch after the first week when I scraped it across some stainless steel. The scratch may only be in the polish though. Anyway, if someone wants to know, it cost about $200. I probably got screwed - damn weddings.

  38. Let's bomb Iraq by Anonymous Coward · · Score: 0

    I say if Iraq insists on it's oil embargo until Israeli troops leave Palestinian territories, then we should insist on bombing Iraq daily until they lift the oil embargo....

    I think we have the artillery to hold out longer than they can.

  39. it _is_ abundant by cats-paw · · Score: 2

    Check out :

    http://www.science.co.il/PTelements.asp?s=Earth

    Although abundance doesn't necessarily mean it's easy to get to, or does it ?

    There was an article in WSJ a while back which basically said that if Ti could be more easily extracted, it would take over steel. Apparently it's hard to get the metal out purely.

    Obviously that's not true for TiO2 which is used as white pigment in darn near everything.

    --
    Absolute statements are never true
  40. my glasses frame is made of titanium by FLY9999 · · Score: 1

    my glasses frame is made of titanium

    1. Re:my glasses frame is made of titanium by MavEtJu · · Score: 2

      Mine too, because non-titanium frames didn't last long. The protective layer around them was corroded[sp?] away within a year due to the acid level of the sweat. Since I'm using titanium frames I don't have to worry about that anymore.

      Oh, and it matches nice with my wedding ring which has a piece of titanium in it. The place where we bought the rings told us that he would never make this design anymore because it was very hard to get the piece of titanium on top of the whitegold.
      thumbnail 1 and thumbnail 2. The big pictures can be found on the website too, but that was before I learned about the macro-option on the camera :-/

      --
      bash$ :(){ :|:&};:
  41. That's not the sexiest metal by sfrenchie · · Score: 1

    Titanium might be smooth and maybe even a little sexy, but the sexiest, and most stimulating metal is definetely "Tonguesten"...

    --

    "The scientist describes what is; The engineer creates what never was." - Theodore von Karman
    1. Re:That's not the sexiest metal by Anonymous Coward · · Score: 0

      You got a thing about dogs Wolf ram?

    2. Re:That's not the sexiest metal by Anonymous Coward · · Score: 0

      Yes, tungsten makes me hard ... I mean, tungsten IS a very hard metal. It can be pretty hot, too!

  42. Ti rings = bad news if injured by GreenKiwi · · Score: 2, Interesting

    Wearing a ti ring is bad if you ever get injured and your finger swells. Most ER's are not capable of cutting through ti and as a result, you could be in a lot of trouble if you ever need to have it taken off.

    1. Re:Ti rings = bad news if injured by cruelshoes · · Score: 1

      Quote from boonerings.com FAQ-
      "Q: What about cutting off a titanium ring in case of an accident?
      A: The very first thing when I started making titanium rings is cut them off of my own finger by different methods. Titanium is about as hard as steel, so things that cut steel such as a hacksaw or Dremel tool can be used. Titanium has a reputation of being stronger than steel. It's not necessarily so. It's the high strength to weight ratio that is the reason it is used in aerospace applications. I've had a customer that did have to get one cut off. They were able to remove it without a problem, and she ordered another titanium ring! "

  43. Ti and acidy skin by shibut · · Score: 2


    Many in my family were "blessed" with acidy sweat/skin. This means that any watch we buy aside from all plastic or all titanium will have it's mechanism eroded in a matter of weeks or months (depending on person). One clockmaker even asked if we dipped a 6 month old designer watch into the ocean for a day or 2... Anyway, with Titanium watches my brother has had the same (very expensive) watch for 3 years now. Since Plastic only goes so far, I bought Ti this year too (although w/ leather strap, but even the strap clasp is Ti). It's light and reliable - what more could we ask for?

  44. ice screws! by red_crayon · · Score: 2

    Various companies have been making Titanium ice screws for about 11 years now.

    Lighter than Cr/Mo and rustproof, take more wear and tear then Al, and stronger, all things equal, than either one.

    See for example.

    --
    "Never bullshit a bullshitter" All That Jazz
  45. Titanium blades vs titanium handles? by Nonesuch · · Score: 1
    Flarners writes:
    Titanium may be as strong as steel, but it's far easier to bend when cut thin.
    This is sometimes an advantage, such as when used for eyeglass frames.
    Anybody who has one of the titanium PowerBooks will attest to the fact that if you try to pick them up from one end, the thing will bend disturbingly. This is why you won't see titanium in kitchen sinks, silverware or anywhere else where the metal needs to be thin, strong, and unflexible.
    Titanium makes a good knife bolster, but I've never been too impressed with titanium blades.

    Check out the Boker site (www.bokerusa.com) for examples of both applications.

    1. Re:Titanium blades vs titanium handles? by mtnbkr · · Score: 1

      Not only bolsters...

      Lots of knives are made with titanium handles. Too many to list here, but a good custom one is Tom Mayo's TNT (Talonite and Titanium). Check him out at www.mayoknives.com. BTW, Talonite is very nifty stuff too (it's not steel, but a metal matrix, iirc). There are lots of production knives with Ti handles as well.

      Chris

  46. TRUTH :Titanium popular only because of discovery by Anonymous Coward · · Score: 1, Interesting

    TRUTH :Titanium popular only because of discovery in 1998 on how to CHEAPLY make titanium.

    Basically titanium dioxide (a common white powder used in paint and found all over this planet) was found in an amazing discovery to be able to be turned into pure titanium by dipping it in a hot salt and using electricity.

    The titanium dioxide is shaped into a cathode in a fused salt cell and under an applied current, the oxygen leaves the oxide as oxygen ions, diffuses to the anode, where it is discharged. The titanium metal is simply left behind and at no stage in the process is the titanium in the liquid or ionised state. This is the major difference with the previous processes. Furthermore, as the titanium is not deposited from the salt, it is relatively inert. Another very surprising observation was that although titanium dioxide is an insulator, it acts as an efficient cathode. The reason for this is that as soon as a minute amount of oxygen is removed, the material becomes an electronic conductor that allows the electrochemical processes to take place. The overall process is that an insulating oxide is made the cathode in an electrochemical cell and the oxygen is extracted to leave pure titanium.

    Its a miraculous discovery and though now titanium is dirt cheap... it is still unworkable into finished products. This makes it expensive because machining it is difficult.

    It used to be that the material was expensive.

    Apple rushed into the fray first with its use of titanium on its flagship computer products.

    I wish people would stop acting like titanium is sexy and hot merely because of a fashion fad... its current popularity is soley based on an amazing discovery.

  47. Makes great wedding rings... by Spazholio · · Score: 0

    I had my wedding ring made out of titanium and gold. The gold is encased in the titanium, visible as a center ring sandwiched between the titanium. That ring has gotten more abused than any other ring I've had, and it's held up remarkably well. The occasional cleaning makes it look almost good as new.

  48. You'll get my titanium spork... by jpellino · · Score: 2

    ...when you pry it from my cold dead hands!

    http://www.snowpeak.com/gear/sct004.html

    Ah, the titanium spork - a glimpse of the sacred within the profane.

    Seriously, i trust the spork - I don't trust many of the titanium bike builders out there - do it right (Tom Kellogg) and you have a dream to ride. Do it wrong, and you've got something that will leave you cursing technology and send you right back to your trusty CroMo or Aluminum steed. And it's very very easy to do it wrong.

    --
    "Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
  49. Exactly! It sure rocks in aerospace though! by DaedalusLogic · · Score: 1

    The core of the structure of an F-14 is Ti, and many other modern jets, but the F-14 being one of the earliest. This box of titanium in the center of the plane is just about the only thing that will survive a catastrophic crash. It also does so with very little damage (relatively) to it. Which brings up the whole... why not make the plane out of the black box question... and the answer is economy... and I'm sure defense secrets... I'd love to hear about some more aerospace uses... Engineers feel free to reply. I just got elected to the student president of AIAA... being a former SAE member focused on cars I need to play catch up on my knowledge of things that fly...

    1. Re:Exactly! It sure rocks in aerospace though! by Shinobi · · Score: 1

      Take a look at the SR-71. Large parts of the SR-71 is made out of titanium.

    2. Re:Exactly! It sure rocks in aerospace though! by seann · · Score: 1

      I do believe this is due to the large amount of heat created by the friction of flying so fast/high.
      the plane's height (back to front) before take off is something like 25 feet
      then when it's flying mach 3, years and years up in the sky, it's 27 ft long!
      (numbers are not right, but you get the idea.)

      I guess they thought of Trying getting steel to do that and realized titanium would be a better option.

      --
      I'm a big retard who forgot to log out of Slashdot on Mike's computer! LOOK AT ME.
    3. Re:Exactly! It sure rocks in aerospace though! by WolfWithoutAClause · · Score: 2

      Titanium has almost exactly the same strength to weight ratio of aluminum in fact.

      It's main advantages are impact resistance, and heat tolerance. You get aluminum to 400C and it loses its temper; do the same with titanium and its just getting into its stride. Was the titanium near any hot jet engine bits by any chance?

      Its downsides are workability and cost. Titanium dust is extremely dangerous- it seriously, seriously burns.

      --

      -WolfWithoutAClause

      "Gravity is only a theory, not a fact!"
    4. Re:Exactly! It sure rocks in aerospace though! by corey_lawson · · Score: 1

      You forgot the SR-71/A-12, which is ~90-95% Ti. Seeing as how it came out in the late 50's/early 60's...

    5. Re:Exactly! It sure rocks in aerospace though! by Darby · · Score: 1

      I do believe this is due to the large amount of heat created by the friction of flying so fast/high.

      It's just the fast part for friction. The higher you go, the less air, hence less friction.
      The weight of titanium could be a factor in the height it can fly though.

    6. Re:Exactly! It sure rocks in aerospace though! by homer_ca · · Score: 2, Interesting

      Actually, they did use steel for another Mach 3 jet, the Russian Mig 25, but it paid the price in lots of extra weight and slow acceleration. Aluminum can only go up to Mach 2.5 before the heat from air resistance weakens the material. Steel and titanium can take higher temperatures.

    7. Re:Exactly! It sure rocks in aerospace though! by DaedalusLogic · · Score: 1

      The titanium structure I was trying to poorly illustrate was a massive center section of the fuselage that surrounded the engine and joined the whole plane together at the center... I saw the info on the History Channel... mostly in the Grumman factory and in the crash footage...

    8. Re:Exactly! It sure rocks in aerospace though! by WolfWithoutAClause · · Score: 2

      OK. It must go upto a few hundred degrees there. If they'd have used aluminum at that place the plane would have snapped in half or something because the aluminum would have lost most of its strength due to the temperature.

      There's not much point in having it anywhere else- aluminum is much easier and cheaper to work and obtain, and exactly as strong, provided you can keep it cool.

      --

      -WolfWithoutAClause

      "Gravity is only a theory, not a fact!"
    9. Re:Exactly! It sure rocks in aerospace though! by seann · · Score: 1

      I had a clause (although I'm not so sure about the latter because of the lack of air)

      then I realized, when the plane comes back down from being so high, and suddenly hits all the air from the friction, and the hull shrinking back to it's normal height.

      so I kept it in there.

      --
      I'm a big retard who forgot to log out of Slashdot on Mike's computer! LOOK AT ME.
    10. Re:Exactly! It sure rocks in aerospace though! by Darby · · Score: 1

      then I realized, when the plane comes back down from being so high, and suddenly hits all the air from the friction

      Yeah, this is definately an issue. Flying high is easy with respect to friction, but the re entry could be a bitch.

  50. Makes great armour for Battlebots by displacer · · Score: 1

    Nice thing about titanium is that it is very saw resistant, which makes it good for bottom armour on Battlebots (like mine). It also makes for good TV because when it is struck hard enough, or hit with a saw it makes nice big, bright white sparks. When you see those sparks on Battlebots, it's not special effects, it's Titanium!!

  51. Re:My wedding ring too, and just to be extra geeky by rngadam · · Score: 1

    Hey, me and my wife did the exact same thing! Except we wrote AMOR (love in spanish) in ASCII coded binary. When was that? We got married in 2000.. Maybe I should patent it! ;-)

  52. abuse of the english language by rossarian · · Score: 1

    A metal is not sexy unless you get sexually stimulated by looking at the periodic table. Neither are computers, programs or cars unless you feel urges to do horribly biological things to them.

    Geez. :P

    1. Re:abuse of the english language by Anonymous Coward · · Score: 0

      Your point being?

      /AC

    2. Re:abuse of the english language by Anonymous Coward · · Score: 0

      calling a metal sexy is a method of making something more interesting; it's called the art of writing!

      It's a bit like calling democracy the "glue" that holds a capatilist society together, perhaps, or calling something that's cool, "cool".

      The last time I was in Germany, folks were calling "cool" stuff geil, which translates roughly into "erotic".

      Titanium isn't only sexy, it's erotic.

      Flame-worthy: - I really hate you bastards that sit around and just wait to pounce on people for spelling/grammar mistakes. It really screws the flow of comments, I think, when I have to take the time to read about someone's un-dotted I. If the grammar/spelling mistake is relevant to the topic I can understand it, but in general, please go visit inglisch-kritiks.com or something...btw, in case you were trying to be funny, I happen to have a metal fetish, so my comments still apply...:)

      So, anyway, this Titanium metal is really turning me on!!

  53. Titanium is also excellent in body piercing. by thesolo · · Score: 2

    Titanium has seen more and more use over the past decade in body piercing as well. While it is just as strong as 316LVM (Implant Grade) Steel, it does not contain nickel either. People who have numerous and/or severe nickel allergies can be safely pierced thanks largely in part to Titanium (and Niobium as well).

    The lighter weight of titanium is another highly-touted feature of the metal in body piercing. Once the piercing goes past a certain point in terms of size, called gauges, weight can become extremely prohibitive for successful healing. Titanium solves a lot of those problems, and allows people to easily start piercings at sizes like 2 gauge (1/4") without having the weight be problematic. I know several men and women who both swear by titanium in their bodies, and will never go back to another metal.

    1. Re:Titanium is also excellent in body piercing. by Grishnakh · · Score: 2

      The lighter weight of titanium is another highly-touted feature of the metal in body piercing. Once the piercing goes past a certain point in terms of size, called gauges [bmezine.com], weight can become extremely prohibitive for successful healing.

      Or you could just not punch unnecessary holes in your body and avoid these problems altogether. I've heard of people trying to drill holes through their arms/legs; is this the next step for body piercers?

      This reminds me of a scene in Pulp Fiction:
      "Is she the one with all the shit on her face?"
      "That's my wife."
      "Oh"

    2. Re:Titanium is also excellent in body piercing. by Anonymous Coward · · Score: 0

      Or you could just not punch unnecessary holes in your body and avoid these problems altogether.

      Or you could realize that piercings have a very deep meaning for some people, and to say something like that is hurtful and ignorant.

    3. Re:Titanium is also excellent in body piercing. by Anonymous Coward · · Score: 0

      well that's pretty rich, coming from an Orc!

    4. Re:Titanium is also excellent in body piercing. by Grishnakh · · Score: 1

      There's a "deep meaning" in drilling holes in yourself? I think you should see a therapist before you hurt yourself any more.

  54. Re:Why so expensive --- its NOT. by Anonymous Coward · · Score: 0

    old info. in 1997-1998 a discovery was made making it 4 times cheaper overnight.

    Anode-cathod method in salt.

  55. Armour by hobbitsage · · Score: 1

    I am in a medievil recreation group and instead of steel for some armour parts people are going to titanium. Going lighter has some advantages in speed. Plus when done right they look real good.

    1. Re:Armour by bellers · · Score: 1
      God, I know how fucking anal-retentive those dorks get over things like names, crests, coats of arms, hats, pants, etc.

      I think the most common phrase overheard at any sort of medievil gathering is "That isnt in period" .

      I can only imagine how badly they'd flip out of you rolled up to a SCA dorkfest clad in a material that didnt exist then. You'd be better off just making Kevlar armor.

      --
      This space for rent.
    2. Re:Armour by Anonymous Coward · · Score: 0

      Sword Forum International has an article that talks about titanium in weapons. The conclusion was that titanium alloys are currently too soft and expensive to be used for weapons.

    3. Re:Armour by Anonymous Coward · · Score: 0

      I'll take a Japanese blade any day. Ooops wrong part of the world. ;)

    4. Re:Armour by Anonymous Coward · · Score: 0

      yes I take kevlar armor, a chainsaw and a shotgun whenever I go medieval. Then again the necronomicon will do that to you.

    5. Re:Armour by hobbitsage · · Score: 1

      well gee the funny thing is that this is SCA and no one says a thing.

  56. Titanium is very hard to work on by MtViewGuy · · Score: 2

    While Titanium is actually a very common element of the Earth's crust, working on titanium metal is major problem, to say the least.

    This was what Lockheed discovered when they built what became the famous A-12/YF-12/SR-71A Blackbird using titanium structural parts. Cutting the metal was a major problem, you couldn't use tools with cadmium as part of the metal alloy to work on titanium, and manufacturing large quantities of quality titanium metal was very hard, too.

    Even today, titanium alloys are still way too expensive to make compared to modern steel and aluminum alloys. That's why golf clubs with titanium alloy shafts cost over US$400 per club, and also the reason why for commercial airliners titanium alloys are used only in areas where high temperature resistance is needed (e.g., jet engine nacelles).

    Besides, the rapid development of epoxy-resin and graphite composites in the last 30 years has reduced the need to use titanium alloys for lighter airplane structures, especially for private and commercial planes. Even though composites are a bit more expensive than stainless steel or aluminum alloys they're still way less expensive than titanium alloys.

    1. Re:Titanium is very hard to work on by corey_lawson · · Score: 1

      they don't use Ti in the nacelles. Those are some other alloy. They DO use it for turbine and compressor blades, because it doesn't "creep" like steel-based alloys, especially in turbine blades.

    2. Re:Titanium is very hard to work on by bastard01 · · Score: 1

      Although, it is the heads of the golf clubs that are made of a titanium alloy, while the shafts are either made with steel, graphite, or those weird ones with both in them, another reason those are 400 per club is the fact that you cannot even make as many in one cast with Ti as you can with steel( I think Ti casts only have 5-8 clubheads on them.) So basically what happens is that the shaft becomes more flexible and the head is a much harder surface, hopefully aiding the distance of rich people everywhere. And of course it will be more expensive as the description of the article stated, high melting point, therefore takes more time/energy to work with and will be more expensive.

    3. Re:Titanium is very hard to work on by TheHawke · · Score: 1

      As i recall from Ben Rich's memiors on his work on Blackbird, they also had problems with Chlorine in the water supply embrittling the metal when they were washing the panels after acid etching them. They had to switch over to a deioinized, distilled water supply. As for the cadnium problem, it stemmed from the techs using cadnium-plated wrenches on bolts on Blackbird, and when they were heated, the boltheads fell off!
      Jack Kelly put a $1000 reward out for anyone that could find a high-temparture sealing compound that would seal BlackBird's fuel tanks, but no one could come up with a ideal solution.. Fortunately JP5 dont light that easily. For instance some Air Force techs turned around and put a little JP5 in a bucket and tossed a lit match in it and it put the match out!

      --
      First rule of holes; When in one, stop digging.
    4. Re:Titanium is very hard to work on by AstroJetson · · Score: 2

      I saw a special on TV about the SR-71 once and it discussed how difficult Ti was for the folks at the Skunk Works to work with. For one thing, all the wrenches, and other tools had to be specially made because normal tools had something in them that would contaminate the metal long term and cause it to fail. Another thing was that they started having wing root failures all of a sudden in some of the planes but not others. Investigation revealed that the failing units were all built in the summer. The city of Pasadena uses Chlorine in the water supply during the summer and they were using regular tap water to clean the parts. The chlorine reacted with the titanium and weakened it causing the failures years later.

      --
      Admit nothing, deny everything and make counter-accusations.
    5. Re:Titanium is very hard to work on by MtViewGuy · · Score: 2

      They had to switch over to a deionized, distilled water supply. As for the cadnium problem, it stemmed from the techs using cadnium-plated wrenches on bolts on Blackbird, and when they were heated, the boltheads fell off!

      Now you know why titanium alloys are only used on very specialized applications in aerospace, primarily in high-temperature environments. If titanium was easier to work with today's commercial jetliners would sport quite a bit more titanium structural parts (because of its high strength per kilogram) instead of the heavy use of epoxy-resin and carbon-fiber composites seen on modern jet airliners such as the Airbus A320 Family of planes and the Boeing 777.

    6. Re:Titanium is very hard to work on by Mandelbrute · · Score: 2
      They DO use it for turbine and compressor blades, because it doesn't "creep" like steel-based alloys, especially in turbine blades.
      It takes a lot longer to creep out of shape (think of something like putty on a hot day) if you use a Ti based alloy like Nimonic 80 than if you use an iron based alloy to do the same job. Pure titanium is of course not the sort of thing you want in that situation - you want an alloy. Turbine blades cast as a single crystal are also good.
  57. Bicyclists have known about Ti for years by talmage · · Score: 1

    Of course it's sexy. It gets you your Glow In the Dark points, too. :-)

    For examples of Ti bikes, see Litespeed, Merlin, and Santana Tandems.

    1. Re:Bicyclists have known about Ti for years by Anonymous Coward · · Score: 0

      Thank you! Cripes, you guys really are a bunch of pale, computer anchored geeks if it took this long for anyone to throw a Merlin into the "yeah, what took you so long" category...

      Sheesh...
      (I've got a Macalu frame -- I believe it's made from a Litespeed tubeset)

  58. Ti wedding rings are perfect for us geeks by lww · · Score: 1

    The bands are so much lighter, you hardly feel its weight in your nose... ;)

    "No dear it wasn't that funny. Yes dear, I'll empty the diswasher right away dear."

    Whoops, gotta run!

  59. Ti bicycles by ragnar · · Score: 2

    Actually, titanium bicycles are quite common. There are dozens of manufacturers (lightspeed among the most common) who specialize in titanium. It has been done since the early 80s, but it has always had a premium on price.

    The reason for this material on a bike frame is to keep weight low and to reduce road vibration. The material is also holds up well in crashes and since it doesn't oxidize it requires no paint and you can ride in the rain without concern.

    Personally I think that carbon fiber is the ultimate material for bicycle frames, but variety is good.

    --
    -- Solaris Central - http://w
    1. Re:Ti bicycles by madenosine · · Score: 1

      I don't know about common....the only time I see titanium bikes is in races. I have never seen a titanium bike with a kickstand (I find it kinda silly that they take the kickstand off to reduce weight.)

      They also have a special type of wheel, rendering titanium bikes useless unless on a smooth road.

    2. Re:Ti bicycles by Anonymous Coward · · Score: 0

      They take the kickstand off to not crimp the frame. The way the stands generally attach is like a clamp on both sides, making the attachment point a good place to put a big dent in the frame. Yes, a rock could do the same, but it would at least have the chance of being deflected (the rock or the whole bike). They could easily add a brazed on attach point, but I guess there's no demand.

    3. Re:Ti bicycles by Orville · · Score: 2
      If you make a quick trip to your Local Bike Shop, you're pretty likely to find a titanium bike.


      Titanium is typically only used on a few brands of higher-end bikes, though. (For example, I took a Lemond 'Tete de Course' or somesuch for a test ride last weekend. Great ride, light, but about $3500.) I'm not sure how the 'ride' of titanium would compare to the ride of steel or aluminum on longer rides, though.


      Oh, and a kickstand implies that you are actually going to stop. We all know that all serious riders *never* stop. ;-)

    4. Re:Ti bicycles by Anonymous Coward · · Score: 0

      A kickstand implies you might actually be using a bike for something important. $350 would be too much for such a bike, but $3,500? Such a sum could pay a working man's rent for six months. Pigs.

    5. Re:Ti bicycles by Anonymous Coward · · Score: 0

      and if they stop, both feet are still on the pedals, and theyre on the bike in a position called the 'Track Stand' in which you balance the bike perfectly with no momentum

    6. Re:Ti bicycles by jchristopher · · Score: 1
      I have never seen a titanium bike with a kickstand (I find it kinda silly that they take the kickstand off to reduce weight.)

      Probably because people that spend $4000 on a bicycle aren't very likely to park it in front of the quickie mart while they go inside for beer.

    7. Re:Ti bicycles by ragnar · · Score: 2

      Yes, they are more common for race bicycles. I guess it depends on weather you talk about bikes in department stores or bike shops. Since I race bikes competively my view may be a tad scewed.

      As for kick stands, you don't need them. Just lean the bike against something. Reducing well over a pound of weight is significant, but even more important is the safety factor. It is too easy for a kick stand to get caught on something and engage.

      Your statement about the wheel puzzles me. The pneumatic tire reduces a lot of road vibration and it makes the most difference. There are many styles of wheels and rims that affect handling and ride comfort but I've never heard of a wheel being more or less designed for a titanium frame.

      --
      -- Solaris Central - http://w
    8. Re:Ti bicycles by ragnar · · Score: 2

      A kick stand only implies that you want to stand your bike up by itself, nothing more.

      As for your off the cuff comment about how other people should spend their money, everybody has their own thing. Some people pay extra for a nicer car even though the basic model works. Some folks pay more for a Macintosh.

      A well made bike is a beautiful thing and it is really hard to describe the passion. I took a second job and ate ramen noodles for 4 months in order to purchase my road bike. It costs around $3500, but I love it dearly and ride about 2 hours a day. If a person spends that much time on a bike saddle it makes sense to be choosy. Don't be so quick to call someone a pig for purchasing the right equipment.

      --
      -- Solaris Central - http://w
    9. Re:Ti bicycles by Orville · · Score: 2

      Agreed. I didn't quite spend that much on my road bike (~$2500), but I look at it this way: spending money on this hobby (which I really like, BTW), goes toward preventing me from the 'perils' of working with computers. (i.e. the 'slob-effect')

      Even though the pay is higher working as a programmer, there is another hidden 'price' that I am trying to avoid! (And I *hate* going to the gym. Spending all that energy to go nowhere?)

    10. Re:Ti bicycles by Anonymous Coward · · Score: 0

      Wow, what hole do you live in that only costs $600 a month?
      This working man has to pay three times that amount.

  60. Re:Why so expensive --- its not expensive anymore by Anonymous Coward · · Score: 0

    its not expensive anymore.

    In fact its plentiful and cheap as of sept 2000:

    Searching for a better way to isolate metal titanium, a team led by materials chemists George Zheng Chen and Derek Fray of the University of Cambridge in the United Kingdom came up with an electrochemical technique, they report in the 21 September issue of Nature. The researchers start with an electrically conductive crucible made from titanium, inside which they place pellets of titanium-dioxide bathed in a molten salt of calcium chloride. They dunk a positively charged graphite electrode into the salt and pass an electrical voltage between the electrode and the side of the crucible. The voltage injects electrons into the oxygen atoms, allowing them to break free from titanium's hold and travel to the electrode, where they pick up carbon atoms from the graphite to form carbon dioxide. The result: bulk titanium without the mess.

  61. Ti good for surgery too by CrazyP · · Score: 1

    This past summer I had my jaw broken and I had to go get surgery done. I had my jaw wired shut for like 5 weeks, but it wasnt healing right. So the doctor said he needed to do more surgery. So, I ended up getting 2 Ti plates in my jaw. This made it so i would not have any problems later in life and force the jaw to heal correctly aligned. If you want to check out a picture of my jaw with the 2 plates (you can also see the break, so its pretty cool) go here

    --
    How do you take a picture of the best moment of your life?
    1. Re:Ti good for surgery too by mr100percent · · Score: 1

      Dude, what hit you?

    2. Re:Ti good for surgery too by CrazyP · · Score: 1

      I was down in Waikiki (i live in hawaii) and was drinking and about a 6'2 200lb local guy (I'm like 5'6 so it was really fair) asked me and a buddy for beer. Stood up to give him a beer, and he hit me, and when i came to after about a minute, i said something to him and he hit me again. So drunk as a skunk i knew my jaw was busted, but still went to the ER and had a nice $400 ride there too. So yeah, Waikiki sometimes isnt all its made up to be :)

      --
      How do you take a picture of the best moment of your life?
  62. Bicycles - a materials primer by legLess · · Score: 2

    Titanium has been used in high-end bicycles for some time. Litespeed and Merlin are the two big original manufacturers, although some others have come on board. Ti's pretty hard to work, though, so Joe's Bike Shop and Espresso isn't going to be able to buy the kit necessary to work it.

    Litespeed cold works a lot of their tubing, which they say creates a stronger tube. They make some breath-taking bikes. And they're breath-takingly expensive, too, believe me.

    For some time now people have been arguing the relative benefits of different bike materials. For most of bike history it was steel, but steel's heavy, plus it rusts. You're lucky to get a steel frame under 5 pounds. Some people still swear by the loose feel of a steel bike, but steel is on its way out. Because it's so damn heavy you can't make a really stiff bike from steel - tube stiffness squares as diameter doubles.

    This is a win for aluminum, and the reason Cannondale can make such fat-tube aluminum bikes. The Litespeed Blade (Ti) has skinny, horizontally stiff and very aero tubing, but it's not so laterally stiff. Let me tell you, when you weigh 220 and you really pound on the pedals, you appreciate the extra width of aluminum tubing. Some people think it's too stiff, though. A nice aluminum frame (like mine, even if it's a few years old) can weigh 2.75 pounds. Unreal.

    Carbon fiber has gotten big lately, too. Tell me this doesn't make your mouth water. That's right - it's got no seat tube. No way can you do that with any metal. Carbon's frighteningly light, but fragile - little scratches really build up and can adversly affect the frame. If you T-bone a carbon bike, one of two things will happen: (a) nothing, (b) you're walking home carrying $2,500 worth of plastic. Trek makes a lot of carbon bikes, including the one Lance Armstrong has been dominating the Tour with. That frame weighs 2.25 pounds.

    Trouble is, the start-up cost for a carbon bike fab is astronomical - higher than any other material. If you want a custom frame, you're likely SOL. This is where Ti shines - custom frames are almost as easy as steel.

    Thus endeth the lesson :)

    --
    This isn't as much "normalization" as it is "don't take so many drugs when you're designing tables."
    1. Re:Bicycles - a materials primer by kromeke · · Score: 1

      Do you know why Al bike frames are stiff (and fat)?

      Al has very poor fatigue strength. Do you see many Al springs? Ti (and steel) has very good fatigue strength. If you use fatter tubing, it will be more rigid. If it's rigid, it will not fatigue as easily. Ti has more strength and good fatigue characteristics, so they can use skinnier tubing (same is true for steel, only heavier). I have an Al bike frame too. But I have it for it's corrosion resistance (compared to steel) plus, I got a good deal on it. I don't ride enough to even think of having a Ti bike (or a carbon one).

    2. Re:Bicycles - a materials primer by Anonymous Coward · · Score: 1, Informative
      Litespeed cold works [litespeed.com] a lot of their tubing, which they say creates a stronger tube. They make some breath-taking [litespeed.com] bikes [litespeed.com]. And they're breath-takingly expensive, too, believe me.


      As a proud Palmares owner and CAT-3, I will testify that the Litespeed frames are worth every penny more than their Ti brothers. Unfortunately, stiffness is something that they've only lately started to figure out. The newer ones this year have carbon rear triangles and are stiff enough to seriously consider racing on. Something else of note, nicks in the frame need to be polished and grinded out as Ti can become brittle around them and eventually fail, although I've never heard of it happening to a bike. I own 3 high end bikes, 2 Al and 1 Ti and the Ti is becoming my favorite it's even starting to outclass the Pinarello Prince that I love so so so so much. I can ride that thing for 8 hours and ride again the next day, on Al I can jump a lot better but 5 hours on the bike and I'm hurting for a day or two after feeling every little crack and pebble in the road. Great for training on, for now I'll still race Al, that may change though.


      For some time now people have been arguing the relative benefits of different bike materials. For most of bike history it was steel, but steel's heavy, plus it rusts. You're lucky to get a steel frame under 5 pounds. Some people still swear by the loose feel of a steel bike, but steel is on its way out. Because it's so damn heavy you can't make a really stiff bike from steel - tube stiffness squares as diameter doubles.


      For pro-level racing, steel is out, no question. When you're trying to put as much energy from each peddle stroke in to forward movement and speed, any flex is out, for that matter Ti is out too. The only people who race it are the people who aren't quite good enough to go pro but are racing 30+ races a year and can't afford to replace their bike every few months or year. For general purpose riding steel is going through a renewal. The air cooled steels that they are making now are as a light as Al but they have the ride of steel, Reynolds and Dedacci are making wicked awesome steels. If you're in to touring or putting serious milage on steel is one hell of a bike. Check out the LeMond Zurich, for example, in its price range is as fine a bike as you'll find, weighs in right around a similarly equipped Al bike. All of the greats still have steel offerings also, Colnago, Pegoretti, Pinarello, Bianchi, and just about all American custom shops do it. I think in the land of Trek, Cannondale, and Specialized steel is disappearing because they have to have Al facilities to build mountain bikes and so they want to support only one metal. Steel is here for the long haul though, I'd have a hard time recommending that a lot of people buy a $5000 Litespeed because they want to "get back in to riding" The lower echelon Ti frames are like wet noodles and dollar for dollar you can get a much better steel frame. Also, steel is "springy" not loose.



      Carbon fiber has gotten big lately, too. Tell me this [kestrel-usa.com] doesn't make your mouth water. That's right - it's got no seat tube. No way can you do that with any metal. Carbon's frighteningly light, but fragile - little scratches really build up and can adversly affect the frame. If you T-bone a carbon bike, one of two things will happen: (a) nothing, (b) you're walking home carrying $2,500 worth of plastic. Trek makes a lot of carbon bikes, including the one [trekbikes.com] Lance Armstrong has been dominating the Tour with. That frame weighs 2.25 pounds.


      Trouble is, the start-up cost for a carbon bike fab is astronomical - higher than any other material. If you want a custom frame, you're likely SOL. This is where Ti shines - custom frames are almost as easy as steel.


      Plus most carbons are kind of "woody" feeling. It's not like riding a soft frame, they can be stiffer than Al but the way they dampen the shock is kind of wierd. In 5 years we will start seeing carbon really reach a level where it can out pace metals. It's the perfect material for building a bike, it's just a matter of mastering it. They can totally control it in every way, they can make things that bend in one direction but not others, they can control how it dampens and responds. They have also historically had custom processes for building it and as other figure it out how to do it well and it becomes more open knowledge we'll see more people experimenting with it.


      For the time being, I think the future of high end racing bikes might start to switch to Ti as they figure out how to put carbon rears in and really master it. Even shaped Ti doesn't quite have the stiffness/weight ratio that a good Al frame has and you can get the Al much cheaper. As for weekending and touring, I think steel is still a very strong road bike contender and it's going to be a matter of making to Ti frames cheaper. Don't get me wrong, the litespeeds are awesome rides, they just cost a ton and they are doing amazing things with steels.

    3. Re:Bicycles - a materials primer by Anonymous Coward · · Score: 0
      That's right - it's got no seat tube. No way can you do that with any metal


      Bzzzt. Wrong answer. You can do that with metal, but the size/weight may be more than they would like.
  63. Be like Bud by Mr.Mustard · · Score: 1

    Yes, you too can be like Bud from The Abyss.

    --
    fnord
  64. Titanium lust objects. by Anonymous Coward · · Score: 0

    Titanium tools from here Imprex. No prices list there but very expensive. Out of my price range unfortunately.

    I got a titanium spring clip from here. You can make a way cool key ring from it.

    More titanium links from this guy.

  65. Also in dentistry by VP · · Score: 1

    I have a crown made of titanium alloy - according to the dentist, metal crowns provide less wear on the remaining tooth than ceramic.

  66. Titanium 1911 frames by Anonymous Coward · · Score: 0

    Geeks who fancy firearms should appreciate the titanium 1911 frame manufactured by Caspian Arms:

    http://caspianarms.com/cast.htm

  67. Really? by Anonymous Coward · · Score: 0

    I'm sorry that you're such a pathetic weakling.

  68. Alloys by Anonymous Coward · · Score: 5, Informative

    For most applications it is Titanium 6-4, very hard and very tough:
    - 6% aluminum
    - 4% vanadium
    - 90% titanium

    For bicycle frames, Titanium 3-2.5 is used as it is more ductile (for forming seamless tubes) and has a better stiffness in torsion (which is needed as pushing on one peddle then the other torques the frame back and forth):
    - 3% aluminum
    - 2.5% vanadium
    - 94.5% pure titanium

  69. Re:TRUTH :Titanium popular only because of discove by Anonymous Coward · · Score: 0

    even cheaper in sep 2000 :

    Searching for a better way to isolate metal titanium, a team led by materials chemists George Zheng Chen and Derek Fray of the University of Cambridge in the United Kingdom came up with an electrochemical technique, they report in the 21 September issue of Nature. The researchers start with an electrically conductive crucible made from titanium, inside which they place pellets of titanium-dioxide bathed in a molten salt of calcium chloride. They dunk a positively charged graphite electrode into the salt and pass an electrical voltage between the electrode and the side of the crucible. The voltage injects electrons into the oxygen atoms, allowing them to break free from titanium's hold and travel to the electrode, where they pick up carbon atoms from the graphite to form carbon dioxide. The result: bulk titanium without the mess.

  70. Higher temperature resistance? by niola · · Score: 2

    I wonder if using Titanium instead of steel in the World Trade Center would have saved some lives? They say the main reason the towers collapsed was the heat from the buring jet fuel destabilizing the steel. The steel weakened and could no longer support the potential energy from the floors above.

    Now titanium they say has a higher temperature resistance, as well as weighing half as much as steel. That means that there would have been more time before the towers collapsed (if at all) for them to evacuate people.

    Just a thought...

    --Jon

    1. Re:Higher temperature resistance? by pezpunk · · Score: 1

      sure, and it would have used up most of the world's entire reserve of titanium to build the towers, plus they would have been absolutely astronomically expensive to construct. sheesh, lockheed had a hard enough time scrounging the needed high-grade Ti for a couple of planes!

      --
      i could live a little longer in this prison
    2. Re:Higher temperature resistance? by Anonymous Coward · · Score: 0

      A pretty stupid thought at that. Ever consider if those people would have died if they all worked in buildings 10 stories or less?

    3. Re:Higher temperature resistance? by dismayed · · Score: 1
      The only problem is how much the building would cost...
      A 1/8th inch steel bar is uh, $1.20 per foot.
      A 1/8th inch titanium bar is $12.00 per foot...:) www.onlinemetals.com

    4. Re:Higher temperature resistance? by zenyu · · Score: 1

      I wonder if using Titanium instead of steel in the World Trade Center would have saved some lives?

      Nah, the columns would have simply been thinner and used less fire protection. You might as well ask if housing all offices in helicopters would be safer. I doubt the industry could even supply the amount of titanium needed to build one 110 story building if it did nothing else. It no longer costs 3x more than gold, but it's still not that cheap nor very plentiful (in its refined form).

      Of course if it ever is maybe we'll build 200+ story towers ;) With air defenses.

  71. Another common use: Tennis racquets by WiKKeSH · · Score: 1

    Don't forget it is common in the tennis players crowd. ;)
    Along with carbon and graphite...

  72. Yeah, but beware of scams by WhaDaYaKnow · · Score: 3, Interesting

    Yeah, we got titanium rings for our wedding.

    It had 'platinum' inlays. After a couple of days my wife got a rash. Now, she wears a titanium watch all the time, so she's not alergic to that. She also has been wearing the platinum engagement ring for several months, so she's not alergic to that either. She is however alergic to tons of other metals, like white gold (or the nickel they use in it).

    When she contacted the company, all they said was, ok, return them, insisting that it was real titanium & platinum. To be fair,- they did refund us promptly, but the ease at which they did it makes me suspicious.

    What I'm trying to say is, how do you know for sure that things are actually made of the material you are paying for? I guess especially when you buy stuff online it's pretty risky.

    And it kind of sucks to have to return your wedding rings :(.

  73. This sounds familiar. by Anonymous Coward · · Score: 0

    It's as strong as steel but weighs half as much, it doesn't rust, and it's fairly plentiful.

    Mythril!

  74. Lot of energy by Veramocor · · Score: 1

    Metals like titanium and iron come from ores.

    Fe2O3 + C +heat yields Fe + CO2

    Titanium is actually a higly reactive metal and forms very stable oxides in the Earths crust. It takes a lot of energy to liberate titanium to its mettalic form.

    Gold and platinum are very unreactive and are usually already found in their mettalic form, unfortunaely the availibility of these metals is quite less.

    --
    Veramocor
    1. Re:Lot of energy by Anonymous Coward · · Score: 0

      titanium is now cheap as heel to make since discoveries in Sep 2000. In fact its already far cheaper than nickel per pound.

      7 versus 15 dollars.

    2. Re:Lot of energy by Darby · · Score: 1

      Methinks someone missed a few lextures in chemistry

      Fe2O3 + C +heat yields Fe + CO2
      This violates conservation laws.

      2Fe2O3 + 3C + heat -> 4Fe + 3CO2
      would be better.

      I know, you're probably a PhD in chemistry specializing in metalurgy and couldn't be bothered ;-)

  75. More eccentric uses of titanium... by Chagatai · · Score: 1
    At my Kung Fu school, the sifus are totally enamored with titanium. They had titanium chopsticks ordered for the whole school so that when they went to China for their every-four-year trip they could eat in a more sanitary manner, in addition to the martial training (who knew there was a chopstick and bowl form?

    But, their next goal is to have titanium spear shafts and Kwan-Daos made (big knife at the end of a staff with a point on the other end). I'd hate to be on the receiving end of one of those weapons!

    --
    --Chag
  76. Titanium cookware by bmasel · · Score: 2
    --
    Ben Masel: 51,282 votes for US Senate in the Wisconsin Democratic Primary
  77. Porn Reference (sort of) by R2.0 · · Score: 1

    Movie: 52 Pickup, starring Roy Schieder & Ann Margret.

    He is a businessman getting blackmailed for an affair, and later murder, of a porn starlet. Lot's of cameos by mid-80's porn stars.

    His business: titanium fabrication via explosive forming - lay a sheet of Ti over a form and then explosives over that. Kaboom, and a complex shape is formed with little to no machining. And the climax of the movie involves the specifics of his business as well.

    Sexiest metal indeed.

    --
    "As God is my witness, I thought turkeys could fly." A. Carlson
  78. SR-71 by Anonymous Coward · · Score: 0

    When Lockheed's 'Skunk Works' was building the SR-71, they needed an ample source of titantium--the plane was made almost entirely out of it (Mach 3 = high friction = heat). Anyway, they had to use front companies and fake names to buy quite a bit of it From the USSR or other such countries who were 'unsympathetic' to the USA's spy plane program.

    Kind of useless trivia for you; I just thought it was funny that the USSR was unknowingly selling the USA the materials to make a plane that frustrated the USSR to no end.

    ***off-topic***
    One of the guys who designed the SR-71, Ben Rich talks about this in his auto-biography 'Skunk Works'. Kind of a fun read about the art of designing super-secret aircraft.

  79. Imagine... by Anonymous Coward · · Score: 0

    ...a beowulf cluster made of titanium!!!

  80. Ti jewelry by maloi · · Score: 1

    If you get any titanium jewelry, make sure it's got some kind of sealant coating. Titanium is very pourous, and your body's natural oils will discolor it over time if it isn't sealed.

  81. So's my inner ear.. by paranoic · · Score: 1

    My stapes was replaced with Ti 20 years ago. Still works great. Can't have NMR's done on my head though.

  82. Nickel cost way more per pound than pure titanium! by Anonymous Coward · · Score: 0

    Nickel can cost $15 to $17 per pound while titanium dropped from a low of 10 in recent years to about 7. Australia predicts 5 soon.

    The reason? All the many new discoveries of the cathode-salt method as metioned earlier in this discussion.

    It is sexy only because it is seemingly more popular than before, and in use by Apple. But its current popularitY is only because titanium oxide (a plentiful substance) can now be electrically converted into pure titanium and is cheaper than nickel.

    The Oscar statues switched from a nickel base to tin form a while ago to save money, but maybe when titanium is cheaper than tin Oscars might use it as a base instead?.... too bad its hard to work with.

    But titanium is cheap cheap cheap.

  83. If you can make graphics cards out of titanium... by Anonymous Coward · · Score: 0

    ...imagine a Beowulf cluster of one of these!!!

  84. Wedding ring? by Anonymous Coward · · Score: 0

    Yeah, pretty cool if he doesn't gain weight. Pretty hard to get it resized.

  85. Re:So's my inner ear.. bullcrap by Anonymous Coward · · Score: 0

    Bullcrap... lots of people with dental fillings get Nuclear Magnetic Resonance images done of their heads all the time. Is titanium magnetic? Highly conductive?

    I doubt your word.

  86. Pah! by Anonymous Coward · · Score: 0
    nVidia have been making graphics chips using Titanium for a year now. Talk about slashdot being behind the times...

    And need I mention Apple and their solid titanium laptops. Their chips have titanium interconnects, none of this namby pamby aluminium interconnect or copper interconnect.

    Pah!

  87. Ti + LOTR = Mega Whopper Geek Boner by Anonymous Coward · · Score: 0

    I'm surprised this hasn't been mentioned yet!

    One Ti Ring To Rule Them All! Yay!

  88. The first titanium wedding ring by Checkered+Daemon · · Score: 1

    My father was part of the team at Climax Steel in New York that created thre first titanium alloy. I don't have the exact date handy, but it was in the 1950's.

    When he married my mother in 1961, both their wedding rings were titanium. At the time, it was the most expensive metal on the planet.

  89. Other treatments for titanium by mbessey · · Score: 2

    Titanium can also be surface hardened by anodizing it, or by coating with titanium nitride (which turns it a golden color).

    There are also purely mechanical treatments that can increase the surface hardness of the metal, or make it less likely to show scratches.

    -Mark

  90. Re:my glasses frame is made of titanium-me too by Anonymous Coward · · Score: 0

    Me too Nikon Titanium $500 dollars for empty frame in mid 1980s. I blew up my face in an arial fireworks accident and the lenses were chared and pitted instantly, but the frames were resusable. I sufffered no permanent disfigurement but am glad the glasses held sound as a blast shield. Most expensive glasses I ever bought. Worth it just for bragging rights. I hope they still do not cost 500.

  91. Cockring by Anonymous Coward · · Score: 1, Funny
    I shouldn't get a titanium cockring?


    You will have to find something else to choke your chicken with....

  92. Why I didn�t get Ti for my wedding band by Xamdam_us · · Score: 1
    Sure Titanium is very nice but I went with Platinum for my wedding band because I wanted something that had weight to it. Plus I like the way Platinum looks over Titanium.

  93. Re:So's my inner ear.. bullcrap by Anonymous Coward · · Score: 0

    It's not just about being magnetic or conductive.
    The fact is, just about any "small" amount of metal may be subject to heating during an MRI.

    While a tooth filling may not be a problem due to the relative resistance of dentine in the tooth, I'm sure the inner ear is far more sensitive to temperature differentials.

  94. movie reference by OxideBoy · · Score: 1

    In Heat, Robert de Niro's character impresses Ashley Judd's by being a metallurgical salesman and reading a book on Ti alloys. *sigh* If it were only that easy ;)

    1. Re:movie reference by xdfgf · · Score: 0

      No you're wrong.

      Robert DeNiro (Neil) impresses Amy Brenneman's character (Eady) by being a metallurgical salesman.

      Ashley Judd (Charlene) is married to Val Kilmer (Christ) in the movie, and DeNiro comes close to beating her in a hotel room after seeing her cheat on her husband with Hank Azaria (Marciano).

      Major Robert DeNiro fan here....

    2. Re:movie reference by xdfgf · · Score: 0

      Typo in my other comment

      Val Kilmer plays Chris not Christ. Only Willem Dafoe can play Christ.

  95. Wedding Ring Overkill? (OT) by Embedded+Geek · · Score: 1

    It must be asked: Given the lifespan of the average marriage, is making a ring out of a military grade substance (which will easily outlast the body upon which it is hung) an act of optimism or overkill?

    --

    "Prepare for the worst - hope for the best."

  96. Titanium for the Masses!! by lesterdcd · · Score: 1

    Titanium is used throughout Offroad motorcycling, especially in Supercross with Factory Support and bikes. Jeremy McGrath's Yamaha uses Ti in the subframe, suspension linkage bolts, axles, and footpegs. His bike also uses billet magnesium, carbon fiber, and lots of aluminum.

    Need some for my bike!! `98 KTM 200EXC

  97. Welding? by markmoss · · Score: 5, Interesting

    Anyone here welded titanium? I wasn't a welder in the Air Force, and it was a long, long time ago, but IIRC the metal shop had to drag out all sorts of gear if welding Ti was necessary. I think you have to flood the weld area with nitrogen because its ignition temperature in air is lower than the melting temperature. Of course, you need something much hotter than the normal welding torch. Then you get the weld done and need to grind down the excess bead -- and as hard as Ti is, that's going to take some time.

    But it's mighty durable once it's together.

    1. Re:Welding? by Anonymous Coward · · Score: 0

      They sure didn't use nitrogen as a shield gas for titanium. It's (afaik) the only metal that burns in pure nitrogen, as well as in pure oxygen. Titanium is tungsten-inert-gas welded using helium or argon as a shield gas.

      And in response to some other questions about its expense, its reactivity (much higher than iron) means that it's in a deep entropic grave in its natural states (oxides) so getting it back out is, like aluminum only moreso, much more difficult than turning rust into iron.

      As a bike racer, I can't stand ti bikes. They're too flexy. True fear is using a titanium stem on a winding mountain descent and feeling and watching the handlebars twist like plastic, deep in a turn.

    2. Re:Welding? by dismayed · · Score: 1
      Well, the reason for the shielding is needed is so you don't get TiO2 from it... which is sorta what you were describing. Basically, you want that inert gas there so you don't get a crappy oxidized weld. right?

      http://www.timet.com/fab-p27.htm

    3. Re:Welding? by David+D · · Score: 1

      It's not THAT hard. You just use a TiG welder (Tungsten inert Gas). The technique is a little different, but mostly it's the same.

    4. Re:Welding? by Gropo · · Score: 0

      Just to clarify, the purpose for flooding the weld surface with innert gas is not due to the melt point, but rather to shield the weld from the impurities that are introduced by the Earth's atmosphere (i.e. oxidization).

      I have a few knick-knacks my best friend welded for me when he worked at Merlin Metalworks (bicycle frame manufacturer) that were welded unshielded, and the welds are very brittle and show corrosion.

      --
      I hate Grammar Nazi's
    5. Re:Welding? by digitalunity · · Score: 1

      Titanium dioxide is *extremely* brittle. There are many different welding certifications for different processes, and Ti is never welded by novices. It's a little difficult for a novice to get good penetration as well as bead regularity and good overall strength. I recommend welding Aluminum for any welders looking for a challenge. It's easier than Ti, that's for sure.

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    6. Re:Welding? by Anonymous Coward · · Score: 0

      You might be thinking of magnesium catching fire when it is being welded - it also has a tendency to do so when it is being machined...

    7. Re:Welding? by markmoss · · Score: 1

      You're right, it was magnesium that they were worried about actually catching fire. Ti welding needs _really_ inert gasses (argon or helium) blown in a cone around the weld so the weld bead didn't turn into some sort of brittle Ti oxide, nitride, or something. This is unlike steel, where it's enough to just control the fuel-oxygen ratio so all the oxygen is used up.

      I once saw an F111 where the fuel tanks had caught fire. The skin was completely burned or melted away, and the frame didn't look complete either. Powdered Al or Ti will burn, and even Fe will burn in a hot enough fire, but thick pieces of metal don't sustain combustion...

    8. Re:Welding? by Gropo · · Score: 0

      I recommend welding Aluminum for any welders looking for a challenge

      Sure... I've known how to weld steel for some years now, and what my bud explained to me about the process of welding Ti made me pee my pants... Of course Merlin was (still is I guess, even though they've been bought by LiteSpeed) hell bent on brandishing the finest, most consistent titanium puddle-beads in the industry. That's pretty much all a Merlin (or Seven) is... Ultra-thin 3/2.5 (like all the others) with Fine Art beads :P

      --
      I hate Grammar Nazi's
  98. My ring is platinum by PD · · Score: 1

    But having my friends call me only when they need to have a reaction catalyzed is a real drag.

  99. tounge rings by Anonymous Coward · · Score: 0

    are way sexier than any other metal, period.

  100. The bank sent me some titanium sheets... by Mark+of+THE+CITY · · Score: 2, Funny

    ... with iron oxide strips on them. Oh wait, it's really just plastic. :)

    --
    The clearance system sounds logical. It is not. It is completely arbitrary. -- John Bolton
  101. Jewelers have a tool for this by swb · · Score: 3, Interesting

    My dad had to have his ring resized back in the late 70s and I went with him to the jewelers. His ring finger had swollen substantially over time and his ring had become quite uncomfortable.

    To remove it the jeweler had a tool with a flat bit that slid between the ring and the finger and had a cutting wheel (like a dremel cutting disk) that cut through the ring. The bit that slid under the ring was aligned with the cutting wheel so that when you went through the ring you didn't start cutting flesh.

    The ring was then resized and re-fused to be a continuous ring. I'd guess that cutting is a last resort and that cut rings might have been resized by actually adding material to make them bigger rather than just stretching them.

    IIRC the cutting part was hand actuated, but with the safety "backstop" I see no reason other than heat that it couldn't be mechanically operated.

  102. Your frame bends, but bends back. by aclarke · · Score: 1

    OK it's been a while since I've used my engineering degree, but... IIRC titanium has a lower modulus of elasticity than (most) steels. This means it is more "bendy". HOWEVER, it also has a MUCH higher plastic deformation limit, which means you can bend it a lot farther than most steels and it would bend right back. So for instance if you make a knife out of titanium you'd probably be able to bend it right around but it would spring right back when you were done (no plastic deformation, only elastic). SO, yes your mountain bike frame is more bendy than an aluminum or chromoly one. That is why very few manufacturers make titanium full suspensioin frames, but they're great for hardtails. I read an article once about how some custom TI framebuilder took one of his frames and bent the thing around, to the horror of the article's author, only to see it spring right back. Do that to an aluminum frame and you'd just crack it, but it would be a lot harder to bend in the first place (speaking generally). The fact that you used to compete in mountain biking doesn't mean you know anything about materials. Heck, I compete AND have a degree in Civil Engineering and I hardly know what I'm talking about.

    1. Re:Your frame bends, but bends back. by mprinkey · · Score: 1

      In addition to the modulus of elasticity and plastic limit, we also have to consider the heat treatment and formation details. There is a reason that forged parts are stronger than cast equivalents. Likewise, you can have a piece of spring steel that is grossly flexible, but if you heat it above the utectic point, and cool it quickly, it will be extremely brittle.

      Metallurgy is still about 60% art/40% science. There are so many different manufacturing processes and microscopic additives that can result in significant changes in overall material behavior. Issues here are residual state of stress, grain size, defect mobility, crystalline structure, intersticial availability, etc. So, IMO, it is impossible to make gross generalizations like "stronger than" or "more flexible than" based solely on the material choice.

  103. forget Titanium, use Zircadyne by mozkill · · Score: 1

    http://www.alleghenytechnologies.com/WahChang/page s/products/cpi/cpi.htm

    Zircadyne® exhibits excellent resistance to corrosive attack in most organic and inorganic acids, salt solutions, strong alkalis, and some molten salts. Thats what im making my house out of. It will resist most forms of terrorist attack.... i hope. :-)

    --

    -- Betting on the survival of the media industry is a serious risk. I advise investing elsewhere.
  104. Cheap titanium by naoursla · · Score: 2, Informative

    I remember reading in Science News a few months back that a new process for reclaiming Ti from oxide compounds was discovered. Ti is one of the more abundant elements on the planet, but most of it is in a form that makes it unusable for metal products. The article predicted that it would be used for all sorts of things very soon (like car frames).

  105. Beryllium is sexier by Anonymous Coward · · Score: 0

    Sure, the oxide is poisonous, but it's stronger, stiffer, lighter, and more conductive than titanium. My dream is to have a pair of planar magnetic speakers with six feet beryllium ribbons :)

  106. Your .sig by Darby · · Score: 1

    You have not done your homework? Then you must fight the bear

    Is this from something, or some random hilarity you made up, or perhaps a suggestion to improve the educational system?

    1. Re:Your .sig by Kargan · · Score: 1

      Heh, it's actually from a semi-older episode of Saturday Night Live. The premise was a Japanese sitcom "for wacky American people!"

      I know this is obscure, because I can't find a single thing about that sketch on the Internet. I just remember it being really funny.

      --
      Palaces, barricades, threats, meet promises
  107. Oakley X Metal by Joe+Jordan · · Score: 1

    Check out these Oakley sunglasses with titanium frames - not cheap by any means, but very, very sexy!

  108. Gold Is The Metal with the Strongest Shoulders by drwho · · Score: 1

    Or so says Coil. Yeah.

    Personally, I think Platinum is nice, along with Palladium.

  109. TiBook: Sexy but needs to be more rigid?? by RemiT · · Score: 1

    Umm... yeah. Titanium is way flexible in sheets (and TiBook case), but it can also be rigid by design (I remember the Air Force Materials Lab learning to fast-forge nearly indestructible drive shafts with Ti in the mid-90's)....

    So maybe the main point is still Apple's designers needed to do more work on making the case rim/structure more tumescent.... (Fortunately, there's no chance of my TiBook leaking fuel like the Ti SR-71 Blackbird used to!)

    What I still wanna know is who's gonna recycle all this Ti tech after we wear it out or fall outta lust with it!

    Ho-ah indeed.

  110. heh by allism · · Score: 1

    I warned my fiance about this before I bought his titanium wedding band--he's using it as HIS insurance that he won't gain weight.

  111. Better yet... by Anonymous Coward · · Score: 0

    ...Go Here.

  112. why it's expensive by Anonymous Coward · · Score: 0

    Not because it's hard to refine ( it's harder to refine aluminum)
    but rather because
    1. A lot of end-user titanium comes from aerospace manufacturers, and has had to pass through FAR tougher quality checking.
    2. difficult to machine. Much, Much more difficult to machine than steel or aluminum. It work-hardens at a fantastically faster rate than steel or alumimnum ( work hardening is when you bend a coat hanger for instance, and at the location where you do the bending you'll notice the wire is significantly harder.)
    3. Related to #2, it must be welded in a an intert atmosphere for the weld to remain as flexible as the rest of the product. If any oxygen gets in there during the weld the weld becomes a far more brittle metal.

  113. I want a car made out of this stuff! by Athex · · Score: 1

    Doesn't rust?? 1/2 weight of steel? Sounds like the perfect material to make a car out of! I want one!

  114. Better than titanium by r_j_prahad · · Score: 2

    But it's actually aluminum that reigns supreme for enhancing sexiness. Any fool who has downed a six-pack of aluminum beer cans will tell you how much sexier (and even younger) the babes in the local tavern get with each aluminum pull-tab.

  115. Titanium is cool... as armor! by Cinnibar+CP · · Score: 1

    One of the more interesting modern uses of titanium is actually an old form known as "chainmaille". Titantium wire, used in place of steel, is used to make intricate and exotic armor using this not-quite forgotten art form.

    As it can be easily anodized (plated with a oxide that causes a color change by passing electricty through an electrolyte solution), it is one of the more popular metals for chainmaille jewelry as well.

    More information on the use of titanium in chainmaille can be found at : Mailartisans

    General information about chainmaille art and armor can be found at the forums at The Chainmaille Board

  116. Dyson sphere by Anonymous Coward · · Score: 0

    Frames, rings, golf clubs??? Man you guys sure think small. I will not be satisfied until I am living in a dyson sphere surrounding some tiny tiny star.

  117. Fad by RadioheadKid · · Score: 2

    This titanium wedding band thing has fad written all over it, get some balls, buy platinum, don't cheap out with the titanium, and don't bother replying saying that platinum dulls, already know that.

    --
    "Karma can only be portioned out by the cosmos." -Homer Simpson
  118. A decade late and a grand short by xmedar · · Score: 1

    Pfft! My watch, that I've had for 12 years is a Longines VIP in titanium and gold, I suppose I was an Early Adopter, oh and it has great geek appeal, as it is the most accurate quartz watch ever made, it even compensates for temperature variation, I've only ever met two other people with the same model, both self made millionaire geeks, anyway it's nice to see some of the laggards catching up.

    --
    Any sufficiently advanced man is indistinguishable from God
  119. No we don't. by Anonymous Coward · · Score: 0

    Because our armed forces have invested so heavily in high-
    tech laser guided bombs and GPS guided cruise missiles,
    we have reached the point where a SINGLE missle can cost
    1 or 2 milloin dollars. Remeber how we nearly ran out of
    air launched cruise missiles because we were engauged in
    so many "peace keeping" operations during the mid 90's.
    These weapons cost so damed much that we will never be
    able to stockpile a large quantity of them. Therfore we
    can't afford to wast them on low value targets like
    shacks, warehouses, and 40 year old Soviet tanks!

  120. the titanium ring lasted; the wife didn't. by millia · · Score: 1

    just as well, i suppose.
    but while i'm here, i can clear up a few misconceptions i've seen so far.

    first, since it's milled, they can bevel the inner edge- or at least the place i got mine from, Rings Forever did. (they did a really cool job, btw.) anyway, they'll make it however you want. but the beveled edge made it easy to slide on and off. it also seemed slippery than regular gold. they used medical grade Ti, which cuts easy enough, too.

    second, they stated in a faq that came with it(and i can't find it on the website now) that you had to use a special machine to make one bigger, and it was only good for a one time enlargement. they do say now that they'll do resizings for free.

    third, they sound great when struck. beautiful tone.

    fourth, the beautiful matte finish they have wears off, unfortunately. but it's still pretty regardless.

    i showed mine off to Orson Scott Card at a signing once. he said he had never actually seen one in person; his novelization of 'the abyss' was where i got the idea. (this was back about 93, I guess; got married in 92.)

    --
    stored on computers from birth to the grave
  121. Titanium Chopsticks. by Alkaiser · · Score: 2

    Anyone know anywhere to find those Titanium Chopsticks they mentioned? There are some Snow Brand "Carry-on" Chopsticks that are part wood, and part brushed aluminum (dubbed titanium), but I haven't found any of the weapons grade Titanium chopsticks the guy talks about in the article, except on this Korean site that didn't actually sell anything.

    --
    Netjak.com independent reviews of domestic & import video ga
    1. Re:Titanium Chopsticks. by muchandr · · Score: 1

      Try REI. I am also a proud owner of their titanium fork and spoon kit 'for alpinists'. :)

    2. Re:Titanium Chopsticks. by Ed+Sassler · · Score: 1

      Hmmm... I made a set, but as tradition would have it the chopsticks were wood (cherry in this case) and only the last 7/8" was titanium. Despite being a rather simple lathe project they wound up being kinda expensive because I had to insert a stainless steel threaded rod down the center, and doing the finish work when you have a soft material mergiing with a very hard material is kinda tricky. I don't have any pictures, but some of my other work can be viewed at http://www.ti-designs.com

  122. Titanium=$free.99? by Dolentron+3030 · · Score: 1

    In last June's issue of New Scientist they talk about a new refining technique being developed that could drop the price by 75%. Looks like we'll all be pimpin' in titanium rides before you know it. Check it out. http://archive.newscientist.com/archive.jsp?id=229 75200

  123. Ti Cameras by Robokos · · Score: 1

    Two of the most beautifully designed cameras (IMHO) are made of titanium bodies: The Leica minilux and the contax G series . A tad pricey , but they both excellent designs.

    1. Re:Ti Cameras by meatpopcicle · · Score: 1

      Nikon also made a very nice Titanium camera a few years ago called the Nikon 35mmTi.

      Matrix metering, quality optical components, and 1/3 stop settings in a compact camera.

      SWEET!

      --
      "You're on my side and the dark side, like Lando Calrissian?" --Gimpy, Undergrads
  124. Re:My wedding ring too, and just to be extra geeky by Anonymous Coward · · Score: 0

    Why didn't you just marry a computer freakshow?

  125. We tried to get titanium rings... by Anonymous Coward · · Score: 0

    My wife and I looked into titanium rings when we got married. We went to a very good metalsmith and asked him about it, and he explained that he wanted to work with titanium, but couldn't at the time. The equipment he had to do his work didn't get hot enough or allow for enough oxygen or both or whatever. He explained that would buy new equipment, but it was too expensive or some such thing and would have to wait until prices came down.

    That was almost 5 years ago, though, so maybe things have changed. When we looked into it, you had to go to someplace that specialized in it or worked with titanium for other reasons (bikes, etc.).

    I really would like to have titanium rings, but oh well. That's the way things go.

    Forget about me ever buying a diamond again, though--I've read enough in National Geographic and heard enough on NPR about the evils of the diamond trade that I never want to touch one again. Makes the crack trade look like candy manufacturing.

  126. Re:Sexiest Metal? by Anonymous Coward · · Score: 0

    Changing guns for brooms,
    The guards change to clean-up crews.

    RIP D. R. Goettel

  127. Bicycles, Wedding Rings, and Metallurgy by Anonymous Coward · · Score: 0

    I'm a cyclist, and the Ti wedding ring is OLD news in the cycling community.
    Here are some tips... CP(Commercially Pure) Ti is relatively easy to draw into tubes and usually comes from the states in the former U.S.S.R.
    3Al/2.5V is the most commonly used alloy for Road and Mountain Racing Ti Bicycles.
    Litespeed (Very Happenin' Frame Maker) Actually uses 6/4 Ti in some of it's top framesets cha-ching $$$
    Great 6/4 vs. 3/2.5 vs. CP vs. Al vs. scandium from litespeed site...

  128. Amd by bsdbrett · · Score: 1
    The Downside: [...]its high melting point makes it difficult to work with under some conditions

    Well there goes any chance of making my AMD Athlon's PC case out of it!

  129. Pensacola by Latent+Heat · · Score: 1

    There was this TV series called "Pensacola" staring Mr. Barbra Streisand as the commander of the Marine flight school. In the opening montage, one could see all that aviation aluminum, all that titanium, and of course that was just for the foundation garments for the fighter pilots' girlfriends -- we hadn't even gotten to the Marine F18's.

  130. Come on by Anonymous Coward · · Score: 0

    Been used for years to make wetsuits. Yup, thatr's right, most watersports enthiusiasts such as me wouldn't go anywhere without "Titanium" emblazoned across our chests. 'Specially not in Scotland, where the reflective properties of the titanium threads keep me warm even in Winter.

  131. I have one also - Ti is strong but not hard by Bryan+Ischo · · Score: 2

    I have been wearing a Titanium wedding ring since 6/1999. I bought it at www.titaniumrings.com, a place in Montreal that I would highly recommend.

    The ring is a Titanium alloy - Ti6Al4V ... it is very strong, and I think pretty attractive.

    The problem is, whereas Titanium is a strong metal, it is not a very hard metal ... meaning that it scratches more or less as easily as any other metal. So after a while your ring ends up as scuffed as any other ring.

    If I had to do it all over again I would have had a hardened tool steel ring custom made with a Titanium Nitrate coating. I think that the result would be basically indestructible and nearly scratchproof (with 99% the hardness of diamond). Actually some of the other nitrate coatings are cool too because they have a blue or greenish tint. I probably would have gone with one of those.

  132. Titaninum is great but... by Anonymous Coward · · Score: 1, Informative

    The problem with using titanium in applications such as jewelry or heaven forbid structures is its underlying crystal structure. Its very hard but not ductile, consequently when it breaks, it breaks in what my professor would describe as one big scary KA-BOOM. Not such a problem in jewelry, though if it did break it would be near impossible to repair, and the fragments would be sharp.

  133. Anodizing in a groove. by Anonymous Coward · · Score: 0

    Titanium is perfect, I love my Ti wedding ring. I got a plain style, not the one with anodizing. The reason is that the anodizing is in a groove, and the groove edges are quite sharp and would catch on everything. You can get them re-anodized though.

  134. Not the whole story by Genjuro+Kibagami · · Score: 1
    Titanium is not necessarily stronger than steel in the sense that most people think it is, for example that movie blade, you know, with the crappy vampire hunter, etc. They thought they were being clever by having a silver edged titanium bodied double sided sword, in real life, a sword that slender made of those materials would warp incredibly easily (yeah I know I'm nitpicking on metallurgy on a film filled with vampires, sue me).

    Titanium maybe as strong as steel and half as heavy but the size ratio for titanium to steel makes steel the better material where the body of the object must be reasonably compact, as is the case of swords or knives, This may not apply to that whack freak cloud from Final fantasy or any other assorted gunblade looking thing where the blade really probably *is* big enough to be made out of titanium.

    I wouldn't want to try swinging one of those things though, yeagh.

    There are many materials that are stronger than steel, (spectra, etc) but steel is still the creme de la creme when it comes to blades and blade like objects.

    I have heard people using a titanium alloy based material getting results with smaller knives comparable to the same blades made of stainless steel alloy, but stainless steel is pretty weak comparitive to the "cutting edge" in blade level steel (Bainite katana at bugei). I would really love to know exactly what is in that steel, I own one standard katana made of swedish powdered steel and a bainite katana, the bainite is lighter, holds a better edge, and recently now that the swedish powdered steel blade is an ex-blade due to an accidental high velocity impact with a large freestanding concrete structure.. (ahem) better structural integrity too. ;)

  135. Of course Titanium is the sexiest metal... by VistaBoy · · Score: 1

    If the metal has the word "Tit" in it, of course it's the sexiest metal...

  136. What about a Ti hockey stick? by Wildcat+J · · Score: 1
    There are hockey shafts made out of aluminum; I would assume it is because it is both strong and light (aluminum and carbon shafts are hollow, unlike traditional wood sticks). I was kind of surprised to find out that breaking and aluminum shaft is not that unusual. Since titanium is both lightweight and less brittle than aluminum, I wonder if it would make for a good hockey shaft? On slap shots, and even wrist shots, you generally flex the shaft a fair amount, so its ability to deform and return to its original shape would be a plus, I would think, although you don't want the shaft to be too flexible.

    The cost would probably not be prohibitive, as I already pay $80 to $110 for carbon shafts (I swear by the Easton Z-Bubble). I'm not entirely certain that the price is based on the actual manufcaturing cost, anyway.

    Anyway, just a thought.

    -J

    1. Re:What about a Ti hockey stick? by FawQ2 · · Score: 1

      I work in a CNC machine shop but dont work with Ti so I cant give you a metalurgical lecture on what you're looking for exactly although I'm sure some form of it would suit your needs well. However, we manufacture and work with a rubberized plastic (lamens descripton) known as Elastomer. It can take great stresses and return to it's pre-formed position repeatedly from now until the end of time(not exactly but, a long, long damn time). It is relatively inexpensive to produce and can be tailor made to a desired derometer. Not knowing the actual design and workings of a hockey stick, I'd have to say I'm not sure if it would or wouldn't work for you (anything is possible though) but if you would like more info you can e-mail me at: msmagee@attbi.com

  137. The sexist metal by Anonymous Coward · · Score: 0

    So what if titanium is the sexist metal! I have know about Titanium being used outside of the aerospace industry for twenty years and I am 32 years old! Way back in the early eighties someone built a titanium BMX bike frame. It was about 10-15 grand at the time as I remember. So if any reader wiould go to their local newsstand and pick up a bicycle amgazine you will see that titanium has been used on bicycles for a long time. Hell a decent pair of Ti cranks are about $500 or more. So I do not see all the wow factor about titanium. It is expensive but it works and looks real cool especially on a Litespeed bicycle frame.

  138. titanium bands... by Destoo · · Score: 1

    Actually, Gillett's has a pretty interesting titanium information page.

    That meteor style ring rocks, btw.
    Colors are silver, blue, purple or iridescent.

    With its cheapest band around 100us$, I wouldn't really call it "expensive".

    --
    Nouvelles de jeux et technologies en français. TC
  139. Ti sux by Anonymous Coward · · Score: 0

    As a Mech that has done a bunch of metal work, Ti doesn't make much sense to use for consumer or industrial uses unless it is REALLY needed. It cost a shitload and is hard to work with. In most applications steel (4130 and 4140) can be used over Ti since the strength to weight ratio is similar and steel is actually stiffer.

  140. Girls are evil by Anonymous Coward · · Score: 0

    GIVEN:

    Girls = Time * Money (Just plain true)
    Time = Money ("Time is money")
    Money = (Evil)^(1/2) ("Money is the root of all evil")

    ---

    Girls = Time * Money
    ~But because Time = Money,
    Girls = Money * Money
    Girls = (Money)^2
    ~But because Money = (Evil)^(1/2)
    Girls = ((Evil)^(1/2))^2
    ~Simplify.
    Girls = Evil

    1. Re:Girls are evil by holyhonko · · Score: 1

      Are you GAY? GIRLS ARE GOOD

  141. Even more sexy... by Overzeetop · · Score: 1

    ..you've just gotta see Beryllium-Aluminum. Ti is great, but it's not that strong - steel alloys can be made much stronger. It's rather flexible - it bends twice as easily as the same size piece of steel.

    Be-Al alloys weigh about 80% of Aluminum, or just about 30% of steel. It has the strength of aircraft grade aluminum - near the strength of structural (A36) steel. But the kicker is that it's STIFFER than steel! Not by much, but there are few metals or alloys which have a stiffness greater then 30,000 ksi.

    Super high end golf club heads (drivers specifically) are made from the stuff, but I think they cost in excess of my monthly salary. Very sexy, indeed.

    --
    Is it just my observation, or are there way too many stupid people in the world?
  142. Batteries? by Anonymous Coward · · Score: 0

    What's the deal with those titanium batteries?

  143. Sovietski Titanium Crowbar - Most useful Ti thing. by wherley · · Score: 1

    I've had one of these for about a year now. Blurb from their page:

    Titanium crowbar is tough, lightweight and rustproof.
    Titanium - stronger than steel, yet 30% lighter. It's also non-magnetic and chemically inert, so these tools are perfect for all those household chores. And, because they'll never rust, they're ideal for marine environments, too. (scuba divers and marine salvage operators swear by them). Not to be confused with the dinky little prybars sold elsewhere - these babies are a whopping 22" long and built like a tank! But, at just 1.4 lbs., they're perfect for those "go light, move fast" tactical ops! Brand new. Lifetime warranty.

    I think they were cheaper there when I picked one up. Practice safe crowbarring!

  144. Also... the unpatched release had a nasty bug by Behrooz · · Score: 1

    The game was "locked" at the lowest difficulty level.

    --
    "We have to go forth and crush every world view that doesn't believe in tolerance and free speech." - David Brin
    1. Re:Also... the unpatched release had a nasty bug by Beliskner · · Score: 1
      The game was "locked" at the lowest difficulty level

      <Squeaky Bill Gates voice>That's not a bug that's a feature.</Squeaky Bill Gates voice>

      --
      A caveman dreams of being us, the incalculable power and riches. We dream of being Q, then what?
  145. OT: Website by Anonymous Coward · · Score: 0

    Cool site... I wish I could find one of those in Sweden. For what, you ask? Custom computer case building of course! :-)

  146. Subaru Impreza - Titanium shifter knob by arunkv · · Score: 1

    Subaru offers a titanium shifter knob as an option on its Impreza line of cars. Personally, I think it doesn't blend in with the rest of the interior.

  147. Ti is cool, but not why you think it is. by aphexbrett · · Score: 1

    Most people don't realize that Ti is everywhere. Have a white plastic bottle lying around? Chances are the coloring agent in the bottle is TiO2, titanium dioxide. It's also used in paints (e.g. titanium white). Another cool snippet is the applications in the synthetic industry. Using Ti as a catalyst or reagent in reactions is one of the only industrially useful metals (synthetically speaking, on an organic chemistry level). I often use a reagent called TiCl4 (titanium tetrachloride, or "tickle-4"). The cool thing is, once I pull my syringe out of the airtight bottle, it smokes like some type of badass really really hot knife. Anyway, Ti is cool.

  148. tennis rackets by mr.albino · · Score: 0

    I play tennis, and I find that a titanium racket is much easier to play with than a traditional racket.

    --
    while you make pretty speeches...i'm being cut to shreds. you throw me to the lions...a delicate balance.
  149. What have you done with the real slashdot? by Anonymous Coward · · Score: 0

    This story submission used "its" and "it's" a total of 6 times, and each of them was correct. What the hell is going on here?

  150. Teenage Mutant Ninja Turtles? by Aqua+OS+X · · Score: 1

    TMNT? Teenage Mutant Ninja Turtles?

    --
    "Things are more moderner than before- bigger, and yet smaller- it's computers-- San Dimas High School football RULES!"
  151. Um by autopr0n · · Score: 2

    Your bikes' frame may have bent a lot, then returned to its orgional shape. Titanium is very flexible and durable. What the orgional poster was saying that titanium isn't rigid. So it's not good when you don't want it to be bend ever (you would probably want a bike frame to be somewhat flexable, although I don't know)

    --
    autopr0n is like, down and stuff.
  152. Sexiest metal? by MsWillow · · Score: 1

    I'll vote for a mix of elements, formed as mokume gane . It's rather like Damascus steel, but made from different materials (commonly gold, silver and copper alloys, in varying proportions). They take several layers of different metals, diffusion-bond them together, hammer out thin, fold and repeat. The results are incredible.

    It'd likely be rather too high priced for laptop cases (well, unless you have money to burn), but as wedding rings it rocks! Though some titanium wedding rings don't look half bad, either :)

    --

    Lemon curry?
  153. TiO2 and self-cleaning glass by wowbagger · · Score: 3, Interesting

    One other neat application of Ti is TiO2 coating glass and other surfaces. The TiO2, when exposed to UV light (like sunlight) causes a catalytic reaction oxidizing anything on the surface.

    Car windows treated with TiO2 on the outside would literally burn off the gunk that gets on them (insects, bird splats, hydrocarbon grunge) in the sunlight, staying clean.

    There has even been talk of using this in medical surfaces (exam tables and O.R.s) - when you are done, flood the area with some UV and burn the microbes off the surface.
    http://www.google.com/search?hl=en&q=TiO 2+UV+surfa ce+treatment">here's a link to some pages on Google.

    a href="

  154. Un-obtainium by FawQ2 · · Score: 1

    You know how when you meet someone and don't really find them attractive at first but overtime that changes and you just cant help but have feelings for them? Well, I work in a machine shop and dont work with titanium but I have known steel and aluminum for years and dont even feel the slightest bit aroused when they're around, let alone find them sexy. While I admit, steel and aluminum are no titanium, you'd think I'd feel something. Is this normal? Ti is very expensive. So are women(not the $2.00 kind). Perhaps it the "un-obtainable" notion that makes _things_ "sexy" to people.

    1. Re: Un-obtainium by GigsVT · · Score: 1

      I'd say that's probably it. Back when Al was hard to come by, it was almost a precious metal. I don't recall the actual buildings, but I believe some monument has an Al top part, because it was considered a huge thing back when it was made, to have that much Al in a building. It was comprable to covering a dome in gold leaf.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
    2. Re: Un-obtainium by markmoss · · Score: 1

      And 19th century royalty dined off of aluminum plates. It was more expensive than gold...

    3. Re: Un-obtainium by Deven · · Score: 2

      I don't recall the actual buildings, but I believe some monument has an Al top part

      You're thinking of the Washington Monument. Apparently it cost $225 (in 1884) and was actually intended as part of a lightning rod system for the structure, not as a tribute. (Not as good of a story, I admit!)

      --

      Deven

      "Simple things should be simple, and complex things should be possible." - Alan Kay

  155. Ti vs. Al by muchandr · · Score: 1

    From what I hear from bike nuts, the lighter and
    stiffer the frame, the better. Hence, Al frames are better than gimmicky Ti ones. (Ti is a relatively soft metal) It would be interesting to
    see more applications that take advantage of its
    extreme resistance to compression (outside of Russian subs that is)

  156. Re:Sexiest metal? by FawQ2 · · Score: 1

    You know how when you meet someone and don't really find them attractive at first but overtime that changes and you just cant help but have feelings for them? Well, I work in a machine shop and dont work with titanium but I have known steel and aluminum for years and dont even feel the slightest bit aroused when they're around, let alone find them sexy. While I admit, steel and aluminum are no titanium, you'd think I'd feel something. Is this normal? Ti is very expensive. So are women(not the $2.00 kind). Perhaps it the "un-obtainable" notion that makes _things_ "sexy" to people.

  157. Ti wedding rings - my designs by ecloud · · Score: 2
    I wanted to design a ring/wedding band set which would interlock, and came up with this design. This guy Boone is selling it as one of his regular designs now, but I think it's my wife's ring in that picture.

    I also got my groom's ring from him (this one). I intended it to be reminiscent but not an exact match to the bride's ring.

  158. Tension settings... by Ed+Sassler · · Score: 2, Interesting

    This is true, what they call a tension setting is really a compression setting - I never really gave any thought to it before. I've made a number of compression settings (still called tension setting on my web page), but my newest sample is a reverse compression setting where the metal crosses under the stone and comes up to hold the sides. To set the stone I compress the ring instead of expanding the ring as with the other compression settings. I'll have it pictured on the next update of the site - http://www.ti-designs.com

  159. It's not... by Ed+Sassler · · Score: 2, Informative

    I buy titanium plate for use in jewelry production, it's not expensive. My rings start out as a hole drilled in a plate, so the thickness of the plate is the maximum width of the ring. a 1/4" thick 1-1/4" X 1-1/4" piece of titanium is somewhere between $10 and $20 depending on the grade...

  160. Not bad, but... by Ed+Sassler · · Score: 1

    Kinda industrial looking for my tastes. My wife and I have rings that look like twisted rope, when put together side by side they look like a square knot. I don't think there are any pictures of our rings, but check out some of my other work at http://www.ti-designs.com

  161. And Honda, and... by Ed+Sassler · · Score: 1

    Honda offers a titanium shifter knob for the S2000 as well. It's a cast piece of pretty low quality (as far as titanium goes) with a simple abrasive blasted finish, but it's titanium. I (ti-designs.com) have made shifter knobs for both Honda (M10x1.5) and Audi(M12x1.25) shifters, not a single complaint that they didn't blend well with the rest of the car.

  162. Ouch!?!?! by Ed+Sassler · · Score: 1

    I might agree if all titanium jewelry were the same piece-o-tubing that titanium wedding bands started as over 10 years ago. In my work (ti-designs.com) I'm trying to put that stuff behind me and create some real artwork. If what you're saying has any truth to it, the novelty of a space age metal will wear off and titanium rings will now longer hold their value. That being said, platinum rings, much like their gold counterparts are cranked out by the thousends. How much can a piece of jewelry say about the person wearing it if the next person in the jewelry store can purchase the exact same thing? I'm proud to be able to tell my customers that they'll never see another piece just like their own, they'll last forever (or 'til they lose 'em), and some people even think they look pretty damn good.

  163. amazing stuff by adminispheroid · · Score: 1

    Titanium really is amazing stuff. We needed a part made, a cylinder about two feet long, 1.5 foot diameter, of 0.030 inch titanium. The shop cut a piece of sheet titanium and ran it through their rollers to bend it into a cylinder -- and it came out flat. So they set the rollers to a much tigher radius and ran it through again -- they said it was all they could do to turn the crank -- and it came out flat again. So they built a jig to hold it while they welded it. They had to attach a cheater bar 6 feet long so they could bend the sheet to get it into the jig.

  164. How to remove a stuck ring: by Mr.+Flibble · · Score: 2

    If you have a titanium ring it may be difficult to cut it off, but there is another method that often works.

    Wrap a piece of string around the finger *BELOW* the ring, winding it towards the ring. When you arrive at the ring thread the string through the ring, then "unwind" the string, the coiled string acts like a screw thread and pulls the ring off.

    An illustration of this technique can be found here. (The page also reccomends trying a dremel... which most geeks own, but modifying cases is one thing, modifying fingers is another.

    --
    Try to hack my 31337 firewall!
  165. Tungsten Carbide Rings by Anonymous Coward · · Score: 0

    I considered getting a titanium wedding band but was concerned about how it would wear over time. I ended up getting a wedding band made of tungsten carbide instead. Tungsten carbide is a nearly scratchproof hard metal ceramic that is several times harder than titanium.

    These rings share many of the disadvantages of titanium rings. They can't be sized. (Titanium rings can be sized up a half size by machining the interior of the band; these can't be sized at all.) They are more difficult to remove in case of hand trauma that gold or platinum rings. (These can't be safely cut off a finger but can be broken with ordinary vice grips.) Furthermore, they can only be inscribed by laser engraving.

    If you're looking for a high polish, wear resistant ring with a high geek factor and can live with the limitations, you might want to check these out.

  166. The Sexiest Metal by BigFootApe · · Score: 1

    Cobalt blue, all the way.

  167. Re:Sovietski Titanium Crowbar - Most useful Ti thi by Anonymous Coward · · Score: 0

    Uh - you must be loaded if you're buying $50 crowbars.

  168. My wife and I have Ti wedding rings/ Mithril? by On+Lawn · · Score: 1


    Her origional white gold setting for the diamond kept bending so we're going to get a titanium tiffany (pronged) setting. It seemed fitting for an eternal bond to have a nearly indestructible ring (it even has a higher melting point than Platinum).

    Also, after we got married we read the Lord of the Rings trillogy and noticed the use of "mithril" which was like silver but a very light and strong metal. I wondered if JRRT was speaking of Ti but I never looked into it.

  169. Chainmaille by Julie2022 · · Score: 1

    Ti is actually becoming quite popular for making maille...as seen (and purchaseable) on http://www.dcwireworks.com .. go to the Cust. pics section, it's the hauberk with the caption of 'You Have to see this one!'

    and that's not the finished piece, actually, he's still workign on it from what I know...
    (the dark gray is the Ti...the lighter gray is the stainless steel...also another very popular medium for maillers.)

    another place to get Ti rings/coils/wire from is http://www.theringlord.com .. he has a slightly larger variety of gauges...but no pics of Ti pieces, yet.

    anyway...on the Chainmaille Prohosting Forum I'm Julie2022...on The Ring Lord's forum I'm Julanne

    oh, might as well add that on the Prohosting forum is where I came across the link to this site. :)

    [ok, try 11...I just can't get those blasted Url's to work :? any help?I'm lost]

  170. Mod parent up guys by Mandelbrute · · Score: 2

    I've got a degree in Engineering, specialising in Metallurgy and I can't say it better than what's above - so mod the parent up guys.

  171. Titanium Nokia cellphone due in June... by scrm · · Score: 1
    --
    ---- scrm
  172. Re:My wedding ring too, and just to be extra geeky by GigsVT · · Score: 1

    If you were going to use dots and dashes anyway, why didn't you just use morse code, which is a very efficient binary coding of the alphabet, and much more likely that people would be able to read it than a 5 bit encoding scheme.

    --
    I've had enough abrasive sigs. Kittens are cute and fuzzy.
  173. Titanium made museum by Anonymous Coward · · Score: 0
    In Bilbao (Basque Country, a region between France and Spain) there's a Guggenheim museum which is recover of titanium. I think it is pretty cool, but I love my town, so I'm too subjetive to give an opinion ;-)

    Here you've got some photos and the Guggenheim Bilbao Museum website

  174. Ti bikes rock by zoccav · · Score: 1
    My bike manufacturer builds Ti bikes that rock.

    • FYI
    • The 'raw' product they use is sheets of commercially pure Ti
    • These are cut them into strips and rolled into tubes
    • That are used to make the frames
    • And handlebars and forks
    • NOTE
    • Processing Ti is tough
    • How smooth the joints in the frames, handlebars and forks are
    • I own two Ti bikes and both are great to ride
    • These bikes cost significantly more than regular bikes
    • Then again I have a life long garanty on the Ti components
  175. Mythril by CAIMLAS · · Score: 2

    In my mind, titanium is the real-world mythril. I think making a wedding ring of the stuff is one of the damned coolest applications.

    I'm not sure, but isn't there another strong, white metal that is used in rings as well? Or is that titanium I'm actually thinking of? I know white gold and silver exist, but they suck when we're talking about strength.

    I plan on getting my wedding bands made in titanium, with fine laser etching/engraving on the inside of the band. :) (Probably something mutually meaningful)... I think that her engagement ring will also be made of the stuff, with a nice (not big, not small) stone, and a jeweled light blue stone on either side - all three stones will be plush to the titanium, so that there are no 'rough' edges on the ring.

    Or so I hope, at least. :)

    --
    ~/ssh slashdot.org ssh: connect to host slashdot.org port 22: too many beers
    1. Re:Mythril by jlockard · · Score: 1

      You're thinking of platinum. Pretty common for jewelry, and also expensive.

      --
      --JLockard - "Some mornings, it's just not worth chewing through the leather straps." - Emo Phillips
  176. All bikers love Ti by brokenspoke · · Score: 1

    You use it on exhaust system to make the pipe work. It goes a lovely blue when you get it really hot.

    You should see the spannies (expansion chambers) on a GP 2 stroke. Work of art and they can be made so thin they weigh about the same as a pack of cigarettes.

    It doesn't get used for frames though, you need a really rigid platform for the suspension and extrudued aluminium alloys are best.

    --
    -- I am Jack's sig line.
  177. Francium by blitz77 · · Score: 1

    Francium's the most active metal... i wonder why they named it after France... maybe becoz French ppl have the most... ummm... fun? action?

  178. Sure, but what about ... by Hektor_Troy · · Score: 2

    Mother-in-law? Can the ring stand up to her?

    --
    We do not live in the 21st century. We live in the 20 second century.
  179. titanium body parts. by Anonymous Coward · · Score: 0

    I have a titaniun reinforced cheek, and not sure what the rod in my leg is made of but it might be too. Hopefully its nice and strong so that next time I get hit by a car it doesn't break. :)

  180. GM to make Titanium Brittany Spears SUV by bodland · · Score: 1



    According to the demographic market research it was determined this is what American's want.

  181. I had those bendy-frame titanium glasses.... by argStyopa · · Score: 2

    and they sucked.
    Frame: bendy as all heck, would return with nary a problem.
    HINGES: due to the difficulty of welding titanium (so they explained to me) they had to use a milder-than-normal steel for the hinges. Bent like tin.
    (so they said, but when I asked them how they welded the eyeloops & nose bridge together, they didn't know...)

    So as long as the only thing getting bent on your glasses was the actual lens fram or nose bridge, everything was cool. But if the hinges were put under stress (like 99.999% of the time), you're screwed.

    To their credit, it only took moderate bitching before they allowed me to return them for a pair of plain-old-spring-hinge glasses which are great.

    --
    -Styopa
  182. too much information! by endoboy · · Score: 1

    ewwwww

  183. Why you don't see titanium knives by Anonymous Coward · · Score: 1, Informative

    From swordforum.com:
    * Titantium - Most seem to think that the miracle metal would usually be "titanium" for swords. In actual fact, titanium is only a little better (and more expensive) than aluminum. (Both are usually in alloyed form, hence if a bar of titanium is purchased, it is usually a titanium alloy, similar to commercial aluminum being in alloyed form.) Both have a higher strength-to-weight ratio than steel. However, in the form of swords, titanium-alloy has not reached the hardness of steel in order to be of any effective use as a real sword. The best application in swords would be a thick-edged stage prop - however, aluminum will do just as well with negligible difference in performance and a tremendous savings in price.

    I'll take high-carbon differentially hardened dendritic steel in my weapons baby! Sure you have to oil it, but at least as weaponry goes it is primo

  184. Sturm, Ruger & Co. by chiph · · Score: 1

    Sturm, Ruger & Co. is one of the largest producers of titanium in the US. They use it in golf clubs, firearms, and specialized castings

  185. You caught me... by Veramocor · · Score: 1

    Oops I forgot to balance the equation. And I did sleep through a few lectures.

    I don't know if your being sarcastic about your last sentence but i'm not a PhD just working on a masters and in Chem Engineering working on corrosion. You'll find engineers like to take a few shortcuts!

    --
    Veramocor
  186. Extra geeky Ti Wedding Bands by Turken · · Score: 1

    My wife and I got married this past January, and we went with Ti bands for several reasons. Most have been mentioned by other people already (virtually indestructable, really light, geek factor, etc.) but we also had our own twist to it. The ring style we bought

    http://titaniumera.com/order/order-goldinlays-he ar tofgold-hs.html

    was called the "Heart of Gold," and to continue with the HHGTG theme we had "DON'T PANIC" inscribed on the inside. We figure that getting married is about as predictable as hitchhiking, and no matter what may come those two words will be the single most useful piece of advice to remember.

  187. Re:Sexier - New Age Bollock More Like by morbid · · Score: 0

    Oh dear, I doubt the moderators of the above comment were being ironic when they gave you "insightful"
    I'd give you a funny though :-)
    That "antigravity" scam has been about for years.
    Basically there was this dude on a fruitbreak called Bob Lazar who used to go around claiming to have worked on alien flying saucers stored at the skunk works in Area 51. He said the aliens were helping the US DoD by letting them study their flying saucer technology. He had diagrams of "flying saucer simulators" and stuff. He span this pseudo-science new-age clap-trap about the repulsive strong nuclear force "leaking" out of the atomic nucleus of element-115 (ununpentium) and using "gravity amplifiers" to boost this "anti-gravity" to create a gravity wave upon which the flying saucer would surf. The sorfing gravity waves is a semi-respectable scientific postulate. However the "anti-gravity" is not. The strong nuclear force != gravity. End of story.
    You'd have more luck flying an aircraft with a buch of Yogic flyers holding new-age chackra amplification herbal piles healing crystals.
    Or something.
    Element 115 has been made in the lab. IIRC it's half life is the order of miliseconds at the most, so how you get enough of it in one place long enough to power an anti-gravity drive escapes me.

    --
    I'm out of my tree just now but please feel free to leave a banana.
  188. Titanium cookware by northwind · · Score: 1

    I have a numnber of titanium pots and pans from ScanPan. They are truly amazing. Nothing seems sticks on titanium. It works much better than teflon. You can even use metal utensils without damage.

  189. twinkies by Hugonz · · Score: 1
    Twinkies have titanium dioxide in them.Honest! Look at the packaging!

    Hugo

  190. Titanium is stronger than steel for WEIGHT by Drassk · · Score: 1, Offtopic

    Titanium is only truly useful in something where size doesn't matter. In a bike frame, sure, you can make it thicker and nobody's going to notice but for many other things where having it 3x as thick is going to matter titanium isn't as useful. A titanium knife that's as strong as a steel knige would have to be near 3x as thick...try cutting something with a 1/4" thick metal bar sometime.

  191. Lost fingers by ka9dgx · · Score: 2
    I know of at least one case of a lost finger because the ring cutter in an ER couldn't remove a Titanium ring in time to save it. While new versions of this tool might be designed to cut Titanium, do you really want to bet that the one actually available to your ER crew can really deliver?

    --Mike--

  192. Re:So's my inner ear.. bullcrap by brockwild · · Score: 1


    Well, I'll tell you, I'm told be my neuro docs that I can't have MRI's...

    and I'm not going to chance it.

    Also, I went to get a CAT scan yesterday at USC county, and they search you as you go in to the hospital. I asked the cop to check my head with his metal wand and guess what?

    I BEEEEPPPPED like crazy!

    then I went thru the metal detector arch (lke at the airport) and it also went off.

    Off to the CT scan...

    I got my first look at the mesh they put in my dome and was absolutely suprized to find that it's almost half of my skull!!! and it has crazy patterns, of diamonds and squares and lines in it!!! Next doctors apointment I have I'm going to try to get a copy of it...and if thats not happening, off goes the digital elph.

    Its all good, I'm just happy I'm still alive.

    :-)

    brock

  193. Re:My wedding ring too, and just to be extra geeky by NickFusion · · Score: 1

    Umm, ok...

    --
    What were you expecting?
  194. You are all wrong! by holyhonko · · Score: 1

    The sexiest metal by far is... My BUNS OF STEEL!!!