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Titanium As Cheap As Aluminum?

ThesQuid writes: "I caught this article in The Economist the other week. If practical, the electrolytic process described could make the production of titanium as cheap as aluminum. Ridiculous? Just remember, aluminum used to be refined by a process somewhat similar to how titanium is refined nowadays, and when a practical electrolytic refining process was discovered the price of it went from more precious than gold to something, well, as cheap as aluminum is nowadays."

257 comments

  1. Alloys? by WickedDyno · · Score: 1

    Any info on the respective tensile strength/mass ratios of any alloys of Ti, Fe or Al?

    1. Re:Alloys? by ralphclark · · Score: 2
      Strangely my old University bible (61st edition (1981) of the CRC Handbook of Chemistry and Physics) doesn't seem to have this data. However it does list the elastic modulus, which is higher the stiffer a metal is:

      Titanium: 16 million PSI

      Aluminium Alloys: all at around 10 milion PSI

      Ingot Iron and Plain Carbon Steel: both at 30 million PSI

      Consciousness is not what it thinks it is
      Thought exists only as an abstraction

  2. Re:Titanium Fashion by ThesQuid · · Score: 1

    I got the Titanium alloy X-Metal sunglasses from Oakley...and what do I like best about them? Airport metal detectors ignore them!

  3. Re:Nah by R1chard+Gere · · Score: 1

    About the only time I use burning coke is when I'm smoking my crack pipe!

    Richard
    ----

    --
    Deepthroat my submarine, swallow my seamen.
  4. Re:Titanium helmets by re-geeked · · Score: 2

    Yes, the weight probably was the biggest thing, but I'm sure the *resilience* of Titanium (see Materials Science geek posts above) caused some ringing -- of both helmet and head.

    --
    "You can't get something for nothing." - my grandfather, on the stock market and Reaganomics.
  5. Re:But dont forget.... by 303infinity · · Score: 1

    saying less Ti than Al so cost of Ti greater than Al

    Whoa there! Are you talking about whores? And there are more sluts named Al instead of Ti therefore, Al is cheaper? If so, send me Al


    --
    "Only men use whores. Who uses female sluts, men. Who use male whores, fags." -SomeOne
    --
    --
    303infinity Rocks, buy their CD's.
  6. Re:Hmm .. by PsychoI3oy · · Score: 1

    oh come on. why have something as lame as zinc or titanium when you can have the unlimited buying power of ...

    PLUTOMIUM!!!

    or at least Techentium.

    yeah, i think techentium is cooler than titanium. it's the lighest radioactive element, wheee!!!

    --
    -PsychoI3oy
    mmm freeBSDelicious.
  7. Re:Macroscopic uses of Titanium by K8Fan · · Score: 2
    The story i remember hearing is that when the 747 was being first tested, the test pilot took it through a barrel-roll after the prototype had passed all the normal tests. Now that's something i'd love to see!

    The Discovery Channel had a show about the 747. It really was amazing that it was essentially designed without computers. They tested the wing strength by hanging an insane amount of weight off of them, and the test pilot pulled the stick back so far on take-off that the tail scraped the runway.

    --
    "How perfectly Goddamn delightful it all is, to be sure" Charles Crumb
  8. Re:great for cyclists by R1chard+Gere · · Score: 1

    Maybe now I can get a Titanium bumper, so it doesn't get as damaged when I run over spandex-clad
    bicyclists because their feeble human power can't keep up with my DIESEL POWER!

    Richard
    ----

    --
    Deepthroat my submarine, swallow my seamen.
  9. Titanium fuckin' Dildos! by R1chard+Gere · · Score: 1

    That's what I want for christmas!

    Oh, and maybe a Titanium-reinforced gerbil tube.

    Richard
    ----

    --
    Deepthroat my submarine, swallow my seamen.
  10. Re:Credit Card inflation. by drinkypoo · · Score: 2
    nah, ununium is much much cooler... atomic number 111 oh yeah baby....

    And it's like that muppet song. You know, Da da, da-da-da (MUH NA MUH NA). Maybe it's time for some Muppet Schoolhouse Rock? Da da, da-da-da (UN UN I UM!)

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  11. Re:ughh by dangermouse · · Score: 1

    That's fine. Good deal for the rest of us.

  12. Re:COCK: A Girl's Best Friend by R1chard+Gere · · Score: 1

    You really think humans will last 'til 2215?
    I give us 2050, max.

    BTW, it might not be painted, but I'm certainly sportin' wood right now!

    Richard
    ----

    --
    Deepthroat my submarine, swallow my seamen.
  13. Re:Uses of titanium by grammar+nazi · · Score: 4
    Dear 1010011010, Please back up your comments in the future. You say that titanium is as strong as steel, but the fact is that steel is stronger in a tensile tests with the same cross sectional area. Indeed titanium is lighter than steel, but you claim that it is twice as strong as aluminum. If you compare tensile strength-to-weight ratios, than aluminum comes out the winner.

    The way that I think of it is this from heaviest to lightest Steel-titanium-aluminum. From designed strength highest to lowest, Steel-titanium-aluminum. However, the strength-to-weight ratio from highest to lowest goes like this: aluminum-titanium-steel.

    I did enjoy the nice selection of links which you provided with your comment. Thank you indeed.

    --

    Keeping /. free of grammatical errors for ~5 years.
  14. Re:Possible drawbacks? by drinkypoo · · Score: 1
    It is an important engineering problem for this to be an economically viable alternative to the current titanium production process.

    So, is there any way to then get the oxygen out of the electrolyte cheaply? Do we do this now with the electrolyte in the aluminum refining process? And if so, how do we do it?

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  15. Re:Could this mean more elemental commodities? by vheissu · · Score: 5

    In Genius , the Richard Feynman biography, there was an anecdote where the scientists working on the nuclear bomb at Los Alamos discovered they could requesition *anything* from the army. After asking for and recieving a 12 inch diameter solid sphere of gold (later cut in half and used as a door stop) they asked for a kilogram of osmium, only to be turned down when it was discovered that that significantly more than existed in pure form in the entire world at that time.

    --
    /* This post not warrantied for mission critical applications. */
  16. Re:But dont forget.... (nukes !) by Chep · · Score: 4

    Besides, beryllium is EXTREMELY tightly controlled ; mostly due to its very interesting properties when building "uncontrolled" nuclear fission devices (ie, bombs). Beryllium has the very interesting property of being a very good neutron reflector, which means that if you coat a mass of fissible material with a (thin !) beryllium reflector, you reduce by two or three the critical mass.

    Also, Beryllium can be used as a source of neutrons (when bombarded with alpha rays), which again, is a desireable property when building certain types of devices...

    Both effects have been put to use even since Trinity...

    see the HEW archive at http://www.enviroweb.org/issues/nuketesting/hew/in dex.html for more design details (search for Beryllium there).

    In short: don't show up at an airport with some Be on you. You'd Be In Trouble (tm) :-)

  17. True... but by Bun · · Score: 2

    Most if not all aluminum is refined from a relatively rare ore called bauxite. I'm not sure if a titanium equivalent is necessary for this new process. General abundnace of the element isn't necessarily the largest factor in a material's value.

    --
    "Anyone that has ever gotten an idea based on any of my work and done something better with it-good for you."--J.Carmack
  18. Re:Wow! by darkonc · · Score: 1
    Well, it helps if the people reading your joke can follow the thought process. For people (like me) who didn't get the {t,}itanium -> cheap computers link, it looks like your posting really belonged in the transmetta notebook article -- and was even slightly off-topic for that one.

    As far as I'm concerned you're lucky that someone posted a note that explained the wordplay in your joke before it got modded down to -1.

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  19. Re:That's all fine but... by joekool · · Score: 1

    I have to say that you were most likely modded down due to the reputation you have--going after others grammer all the time probably pisses off a few people--I know I always thought of you as a troll, till I saw the your posts above.

    --

    Slackware: old school feel, new school gear.
  20. Re:Welding is really hard by Max+Thrust · · Score: 2

    I used to be involved with production of titanium bike frames, as well as aluminum, 4130, etc.

    You can not weld titanium in free air if you want it to last ;-) With the correct setup welding is not a problem. Gotta keep the tubes clean as well. We used ultrasonic cleaning to keep them clean before welding. Works great.

  21. Re:Possible drawbacks? by Amoeba · · Score: 1

    So... if I try to read that in english what you are saying is that I was on to something in my original post? :)

    In other words, though I possibly didn't have the correct chemistry terms or specifics my hunch was based in reality and not the result of smokin' $3 rock?

    --
    Do not taunt Happy-Fun Ball
  22. Re:Nah by Max+Thrust · · Score: 1

    Land Rover still uses aluminum bodys as well.

  23. Aluminum used to be seriously precious by Shreav · · Score: 1
    When the Washington Monument, National Mall, Washington, D.C. was completed, a one-pound chunk of aluminum formed the very tip of the monument. Reasoning: it was a precious metal at that time. It was akin to placing a gemstone there.

    So precious, in fact, that the Russian Czar (I forget which one), stunned his court by giving his new-born son an aluminium rattle!

    1. Re:Aluminum used to be seriously precious by vinton · · Score: 1
      Well, I don't know which Czar it was, but speaking of 19th century Russia, Nikolai Chernyshevsky, in his dreadful 1863 book
      • What is to be Done?
      , envisioned a utopian future where everything was made from aluminum.
  24. Ouch by Keelor · · Score: 3
    You know, crushing a titanium can against your head would really hurt.

    ~=Keelor

    1. Re:Ouch by Erataikasu · · Score: 1

      Will this reduce the percieved sexiness of Titanium, thus causing Intel to call their next processor the iLuminium? (Or possibly iLuminum in the same universe that Titanium is spelled Titanum ;-)

    2. Re:Ouch by Kalak451 · · Score: 1

      Actualy, were the cans you could crush on your head actualy made out of a paper product and you had to stop doing that when companies switched to AL? I think this is the case, but i'm too young to remember, but trust me, it REALLY hurs to try and smash an AL beer can on yoru forhead, college taught me that.

    3. Re:Ouch by The-Bus · · Score: 1

      I knew a guy that bit into aluminum cans and sucked the beer like a vampire. It frightened the ladies.

      --

      Small potatoes make the steak look bigger.

    4. Re:Ouch by roman_mir · · Score: 1

      Well, my grandgrandfather used to crash a tin can against his head after eating tinned pork chops from it!

    5. Re:Ouch by bughunter · · Score: 2
      ObNostalgia: Actually, up until around 1978, beverage cans were steel, not tin. These are easily recognizeable by the seam that runs down the side of the can. Coincidentally, these cans had IDs nearly identical to the OD of a tennis ball. When I was a lad, playing D&D and Traveller using inexpensive little saddle-stapled rule booklets, we'd use these cans to build lighter-fluid-fueled tennis ball cannons.

      Alas, this practice all but ended with the switch to aluminum cans. Only Hansen's juices and nectars kept to the steel cans... but they switched to Al, too, a year or two ago.

      But you can still soak a tennis ball in lighter fluid, ignite it, and kick it around...

      --
      I can see the fnords!
    6. Re:Ouch by namlhaz · · Score: 1

      ...But the idea is to drink several cans of the beer first, before you start crushing, to numb your nerves so you don't feel the pain ;)

      --
      Zahlman Q. Namlhaz, esq. {:> "Zahl Incorporated - the Last Word in Everything(TM)"
    7. Re:Ouch by po_boy · · Score: 2

      The change was from tin cans which you cannot easily crush on your head to aluminum cans which you can crush with only slight cranial discomfort.

    8. Re:Ouch by CommieOverlord · · Score: 2

      Of course, anyone unsophisticated enough to drink beer out of a can has a skull thick enough to withstand the pain anyways ;)

    9. Re:Ouch by MattMann · · Score: 2

      isn't there a trick to it? you push in from the sides to get the collapse going, loosely speaking to get off of the unstable equilibrium of a "perfect" cylinder.

  25. Re:Titanium beer cans and whatnot. by gauron23 · · Score: 1

    The book also mentiones they bought the Titanium from Russia through a specially setup company.

  26. Cool by Lilior · · Score: 1

    On a sidenote: beer cans made of titanium. Like to see people crush those in one hand. (and keep it that way) ;).

    --
    --Lilior
  27. Re:But dont forget.... by Anonymous Coward · · Score: 1

    Beryllium is the lightest/strongest metal for practical use.

    Beryllium isn't a very useful metal, though. It's so toxic that they issue strong advisories against breathing the dust from machining beryllium/copper alloy spring contacts. I would imagine it's a really nasty metal in more pure forms.

  28. And I just laid down $3700 for my new wheelchair by Noodles · · Score: 1

    Yes, I paid $3700 US for a titanium wheelchair. It's an awesome chair. Not much to it. Very light, yet it feels like it will last forever. Worth the cash since I spend most of my time in it. I just wish the medical industry wouldn't rape the disabled so badly.

    What kills me is thinking what I had to pay for it when I see cool stuff that seems 'expensive', but at half the price of my chair. Like the huge, loaded, riding lawn mower I wanted to get was 'only' $2200. It seems infinitely more complicated than my simple 17 pound chair for about half the price. And that Itanium upgrade...

  29. Going Camping by AntiPasto · · Score: 1
    Does this mean I can get a titanium airstream?

    ----

  30. Re:Aluminum was a "precious metal." by kfg · · Score: 1

    Napoleon had a banquet setting made of aluminum. It took half the refined aluminum in the world to produce it.

  31. Re:It has come to my attention by pb · · Score: 1

    Actually, I was wondering if 666 came from the old Greek dice games where they would roll three dice; it was considered lucky to roll "triple-sixes", as that was a high score.

    Of course, if you're looking for conspiracy theories, then you can find 666 in role-playing, "www", UPC bar-codes, and pretty much everything else, too. (29Ah; ha ha ha!)
    ---
    pb Reply or e-mail; don't vaguely moderate.

    --
    pb Reply or e-mail; don't vaguely moderate.
  32. SST's finally practical?? by RayChuang · · Score: 2

    Folks,

    If they can drastically cut the cost refining titanium and working with that metal, it could have a tremendous effect on the civilian aerospace industry.

    For one thing, it would make Boeing's HSCT (High-Speed Civilian Transport) second-generation SST all that more practical. Given that titanium alloys are very strong and resist heat far better than aluminum alloys, with lower-cost titanium production Boeing could do major weight savings on the HSCT design compared to the aluminum-alloy/stainless steel structure design Boeing studied with NASA back in the mid-1990's. This means that Boeing's HSCT could either carry more pax/cargo for the same proposed range (Los Angeles-Tokyo nonstop) or carry enough fuel to fly LAX-SYD non-stop cruising at Mach 2.3.

    --
    Raymond in Mountain View, CA
  33. Re:Wow! by darkonc · · Score: 1

    When Intel triad to nail someone (amd?) for infringing their trademark on 80486 they found out that you can't trademark numbers. As a result, they renamed the '586 the pentium and the rest, as they saying goes, is marketing.

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  34. Re:great for cyclists by Shambhu · · Score: 1

    I'm not sure what it is at now, but a few years ago titanium was around 32 dollars a pound. Good bicycle frames weigh less than 4 pounds. However, titanium frames start at 800 dollars and go up, way up. So I'm thinking most of the cost is in the manufacturing. Still, every bit helps, eh? Shambhu My sig hasn't made it out of QC yet.

    --
    Rome wasn't bilked in a day.
  35. Re:But dont forget.... by jallen02 · · Score: 1

    Oxygen, dont forget what we breath is only like 20 some odd percent oxygen and the rest nitrogen, breathing pure O will make you pass out eventually. Nitrogen is like 70 percen tof the atmosphere we breath if I remember properly... :)

    Jeremy

  36. Re:Screw titanium by Steve+X · · Score: 1

    my spine is reinforced with steel rods... i survived. the process btw is called "fusion" where hooks are placed on the vertebre keeping it in line. too bad i had to have it done already, it'd be so cool to say "i have a titanium-reinforced spine"

  37. Re:Screw titanium by darkonc · · Score: 1

    Oh, I'm sorry darling, but they haven't rebuilt that part yet....

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  38. Re:Screw titanium by darkonc · · Score: 2
    from Dictionary.com:
    1. adamant
    2. A stone imagined by some to be of impenetrable hardness; a name given to the diamond and other substances of extreme hardness; but in modern mineralogy it has no technical signification. It is now a rhetorical or poetical name for the embodiment of impenetrable hardness.
    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  39. Re:Hmm by darkonc · · Score: 1

    That's why oil's so useful. If it wasn't cheaper than bottled water (ever figured out the price/gallon of evian=!=naive or perrier?), we'd be using something else to get ourselves around, make plastic with etc. etc. That's also why people are screaming so much about the recent rise in the price of gas.

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  40. good, it should hurt by NuclearArchaeologist · · Score: 1

    That stupid gesture is left over from the days of steel cans that really were hard to crush on your head. Someone who could crush a steel can had a real bone head. Oh, I know, they had a bone head to want to do it too, but it was impressive. Crushing aluminum cans is about as macho as ripping open a candy wrapper.

  41. Re:Titanium will always be expensive in my life ti by drinkypoo · · Score: 3
    De Beers managed to increase the preceived value of diamonds though a carefully planned campaign of giving them to female Hollywood stars in the 1940s. Before that they were (rightly, IMO) considered rather boring.

    A chunk of a Diamondtalk.com Forum has some nice information on this. In particular, one poster cited an article in The Atlantic entitled "Have you ever tried to sell a diamond?" notably, it says the following:

    The major investors in the diamond mines realized that they had no alternative but to merge their interests into a single entity that would be powerful enough to control production and perpetuate the illusion of scarcity of diamonds. The instrument they created, in 1888, was called De Beers Consolidated Mines, Ltd., incorporated in South Africa. As De Beers took control of all aspects of the world diamond trade, it assumed many forms. In London, it operated under the innocuous name of the Diamond Trading Company. In Israel, it was known as "The Syndicate." In Europe, it was called the "C.S.O." -- initials referring to the Central Selling Organization, which was an arm of the Diamond Trading Company. And in black Africa, it disguised its South African origins under subsidiaries with names like Diamond Development Corporation and Mining Services, Inc. At its height -- for most of this century -- it not only either directly owned or controlled all the diamond mines in southern Africa but also owned diamond trading companies in England, Portugal, Israel, Belgium, Holland, and Switzerland.

    Just like any other cartel, like the Cocaine People(tm).

    Yeah, but diamond mining requires moving a huge amount of material to get a few diamonds. Titanium mining requires moving a large amount of material into a smelting facility. This process is not going to substantually change things other than making it cheaper. But it is going to change the lifestyle of titanium salesmen.

    That's true now, but remember that previous article in The Atlantic? Well, it links to another article which has this next juicy tidbit:

    Diamonds arrived in Namaqualand millions of years ago, tumbling down the rivers and into the sea. When the ocean receded, some of the diamonds remained on the beach.

    Namaqualand is described slightly above that snippet of text as "...a sandy slab of South Africa along the Atlantic coast. Namaqualand's pan-hot desert and scraped little hills start north of Cape Town and run up to the Orange River..." which is striking, because what that means is that at one time, you could head off from Cape Town, go to the beach with a rake, and just dig up uncut diamonds.

    Also, the American Museum of Natural History has a nice diamond web exhibit which contains, among other things, this page which points out that diamonds were discovered in South Africa by a boy finding one just lying around on his father's farm. Nice anectodal evidence.

    And just to make you ill without sending you to goatse.cx, consider this article (in Red Herring) which talks about a company (now called Blue Nile) which got billions of dollars (literally) in two rounds of VC funding in one month.

    So when you're forking over two months' salary for an engagement ring like a barmy git, keep in mind that once upon a memory you could walk on the beach in Cape Town and spontaneously find a diamond in your toes. How often do you think that happens nowadays?

    Enough data mining for tonight. You're all on your own from here on out.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  42. Re:Uses of titanium by Pig+Bodine · · Score: 1

    I don't disagree in general, but it must rust under some circumstances or given enough time. My chemistry is pretty rusty (Hahahaha!) and I'm not sure I ever understood anything about metals but I'm a religous reader of the Economist and the whole point of the article was that you get titanium dioxide and the new electrolytic process for getting pure titanium is more efficient than the old chemical reduction method. So under what circumstances does titanium rust (i.e. titanium dioxide) form in the first place?

    I realize this is a tangent, but I'm honestly curious to hear an understandable reconciliation of the anti-rusting properties of titanium with the prevalence of titanium dioxide. Maybe I'm just trying to make up for not paying enough attention to chemistry courses when I was an undergraduate...

  43. Re:please don't swear in subject line by Anonymous Coward · · Score: 1

    antichrists read slashdot too, you know, and we have a right to be able to read slashdot without being exposed to christianity. so please exercise judgement when you write messages. I have to say slashdot is getting pretty sad in this regard.

    thanks, ac (antichrist)

  44. Re:Uses of titanium - We can rebuild him..... by tracktwo · · Score: 1
    It also holds together Steve Austin, the Six Million Dollar Man. Where would the entertainment industry be without the advent of the Bionic Man and his accompanying sound effects?

    Whew. Good thing we didn't have this technique back then. The $19.95 man doesn't have quite the same ring to it.

  45. Re:Could this mean more elemental commodities? by vheissu · · Score: 1

    ... when it was discovered that that amount was significantly more than existed in pure form in the entire world at that time. I suppose a reliable copy editor/sentence parser (perhaps using neural nets or something) is far too much to ask of slashcode. vheissu

    --
    /* This post not warrantied for mission critical applications. */
  46. Oh I can dream by Jason+Straight · · Score: 1

    Titanium siding on my house! Titanium engine parts, head, block, pistons. It's so light and strong one could build a big block engine that could turn 15,000 RPM!

  47. Re:Uses of titanium by slashdot-me · · Score: 2

    Titanium is quite reactive and quickly forms a protective oxide film when exposed to oxygen. The oxide film doesn't flake off (unlike iron oxide) and protects the metal from further damage. Aluminum, another very reactive metal, does the same thing.

    Ryan

  48. Re:Macroscopic uses of Titanium by djrogers · · Score: 1

    IANAAE (I Am Not An Aeronautical Engineer), but I remember reading that most airliners are already strong enough to do loops and dogfight and stuff. The story i remember hearing is that when the 747 was being first tested, the test pilot took it through a barrel-roll after the prototype had passed all the normal tests. Now that's something i'd love to see!

    Actually, it was the 707, during the first public display of the craft. Technically, this is not a big deal at all - when properly performed a barrel roll induces a constant 1g load, which all aircraft are cpable of handling.
    --
    Think outside the... Hey, where'd the friggin' box go?
  49. Re:Macroscopic uses of Titanium by istartedi · · Score: 2

    A brief search failed to turn up any confirmation of 747 loop-de-loops, but I can believe it. The "vomit commet" used by NASA for 0-g flights is a pretty big plane, and the parabolic cycle probably puts every bit as much stress on an airframe as a loop. Maybe more.

    My question would be whether or not Ti is flexible enough. Fighter jets have shorter wings than passenger jets. Ever watched the wings of a 727 during heavy turbulence? They flex quite noticeably. Would Ti stand up to that day in and day out for 20 years or more?

    --
    For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
  50. Re:Titanium by J.C.B. · · Score: 1

    I don't think titianium batteries are that much different than normal alkiline batteries. I beleive tiainium is only used in trace amounts in the batteries.

  51. and now for conjectures... by s390 · · Score: 2

    here are a few. (Nice post, btw - briefly covered the current state of titanium supply industry). If this electrolytic refining technology foreseen in the Economist article is realized, some changes will occur. Toothpaste and white paint might get more expensive as titanium metal gets less costly (as metal refining starts to compete with dioxide, the price of titanium dioxide will have to rise). But the major changes will likely proceed from a combination of technologies. One might note that several have remarked that titanium is tough and this means its hard to machine. What if you could create titanium parts without significant tooling? What if you could form a part out of a titanium dioxide/alloy paste on a 3-dimensional 'printer' and then use an electrolytic process to finish it as a completely formed titanium alloy part? Cool? You betcha! That's where the article is pointing. China won't be left behind in such a transition - they'll simply shift from (labor intensive) sponge production to new electrolytic processes and parts manufacture - to designs specified real-time. And they'll use unicode-enabled Linux (TurboLinux? or their own ripoff of same) to drive 3D "printers." Years ago, I toured the Wah Chang plant in Albany, Oregon. Their product was Zirconium, back then...

  52. Re:waaait a minute by AFCArchvile · · Score: 1

    but you're figuratively inspecting a neutron bomb with a sledgehammer.

    --
    "Ancillary does not mean you get to rule the world." --U.S. Circuit Judge Harry Edwards, speaking to the FCC's lawyer
  53. Re:But dont forget.... by irony+nazi · · Score: 1
    Ironically enough, that isn't irony.
    I'm afraid that I have to agree with the grammar nazi on this one. It is ironic.
    --

    Bringing irony to the Slash-masses
  54. Re:But dont forget.... by tzanger · · Score: 1

    No dumbass, silicone is.

    And here I thought silicone was a man-made product...

    Ohh... you meant silicon...

  55. Uncrushable bear cans? by darkonc · · Score: 1

    Nah. They wouldn't be uncrushable: They'd be ultracrushable. They'd crush just fine, but when you let go of them.... sproint! they'd pop back into shape. You'd get to crush it again, and again, and....

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  56. Re:Hmm .. by Tony-A · · Score: 1

    The lightest radioactive element is tritium, hydrogen with 2 neutrons. Very weak beta emitter.

  57. Titanium and crappy uses ;-) by bbaskin · · Score: 2

    As a designer of helicopter rotor systems I can tell you that, yes, Ti is good stuff. I'm a personal fan of TI-Al6V4, we use it all over the BA609 tiltrotor (www.bellhelicopter.textron). However, as others have mentioned, the stuff is difficult to machine and has a real problem with galling, meaning that splines and other components with relative motion aren't good applications. But, hey, I'm all for cheaper Ti.

    However, God intended Ti to belong in airplanes, helicopters, and Soviet submarines. It does not belong in golf clubs. Everytime I hear a vendor turn us down because their production capacity is taken by golf clubs I want to kill someone ;-) Can't say I blame them... no liability, no quality assurance, and no need for machining tolerances on the order of a few thousandths of an inch.

    Baskin

  58. Re:Titanium wedding band by timothy · · Score: 1

    That is such a cool idea! That sounds like the coolest material for a wedding band outside of adamantium (sp?) or Reardon metal.

    Do you take custom orders? ;) If I one day meet a girl, it would be good to keep in mind!

    timothy

    --
    jrnl: http://tinyurl.com/c2l8yr / foes: http://tinyurl.com/ckjno5
  59. Napoleon by Nanookanano · · Score: 1

    had a helmet made of solid aluminum, if I remember correctly. It was more valuable than gold or platinum at the time.

    --
    "..don't you eat that yellow snow."
  60. Re:Uses of titanium "2001 Corvette" by GMwrench · · Score: 1

    The 2001 Corvette Z06 uses titanium exhaust from rear axel back including the mufflers.

  61. Re:Uses of titanium by Pig+Bodine · · Score: 1

    D'oh! Thanks. I know about protective oxide layers with steel and I should have been able to figure that out. If I were a moderator, I'd try to bump you up to 5 for concisely answering a basic question about something relevant to the discussion. But instead I'll just sit here feeling stupid...

  62. Be by jerrol · · Score: 2

    you forgot one...

    Beryllium dust causes Beryllicosis...one of the more unpleasant ways to die.

    It's sort of like Black-Lung disease, only not so pretty.

    --
    Never let your fears overcome your dreams.
  63. Re:Some titanium info by Jollyeugene · · Score: 1

    Actually there are many bikes that are made exclusively of Chineese Ti. It, however, is known to be manufactured by the Chineese military on the same machinery that they make thier nuke missles on. Really amazing that the US buys their crap, gives them the tech to make the missle capable of killing us and then supports them by buying more of their crap. I guess they had to do that, so they could have an excuse to fund BS like Star Wars missile defense! Absolutely amazing. When it comes to bicyles, cheap Chineese Ti frames (i.e. Airborne bicycles) generally are O.K. if you do not mind the moral implications of buying machines made by political slave labor, to less exactling specs on hardware used to make nuclear missles pointed against the free world, with the manufacturing waste being dumped into the water supply of the most populous nation on earth. As for me, steel is where it is at (Ritchey steel is as light as most Ti bikes. Just going to show that engineering beats wonder material)! Aluminum is good too, My Gary Fisher Supercaliber frame is just 3.2 pounds, which is as light if not lighter than many wiggly Ti bikes. If you want Ti, get a real bike. Us Ti bikes, such as the top end Mongoose pro (yes most Mongoose bikes suck, but this is an exception) are much stronger because the material's grain is microscopically aligned (Proprietary Sandvick process I think?). This greatly strenghens the material. Boeing won't even touch Ti that has not gone through this process.

  64. Titanium Material Properties by kurthr · · Score: 3
    Just so it's clear though, Titanium has some good points. Manufacturers seem to be able to build bikes out of it fairly easily. It's fatigue properties are significantly better than most any other material, especially at high temperature (discounting the single crystals like Ni & Si). Aluminum's fatigue strength is basically awful... try bending it a couple of times. Furthermore, Ti is rarely used as a pure metal (except for some marine and medical). Much like Aluminum, it occurs in common alloys like 6-4 (6% Al 4% Vanadium) and in alpha and beta anneal forms, which can have pretty different properties.

    See the extensive data for your selves:
    http://www.matweb.com/GetIndex2.asp
    MaterialType Fatigue(MPa)Density(g/cc)Melting(C)
    Al/6061 60 2.7 582
    Ti/11/6/4,720C 1000 5.06 1573
    Co/Cr/Ni Coldworked 500 8.3 1427
    Silicon /100/ 120 2.31414


    Aluminum has good points too... like it's got really high thermal/electrical conduction, and you can injection mold it. The latter is pretty cool, and happens because its high temp viscocity falls at high pressure. And interestingly if you go to small enough length scales like the TI micro-mirrors where you lengths are near the grain size of Aluminum the reliability goes way up.
    http://www.dlp.com/dlp/resources/whitepapers/mem s/dplmems/1intro.asp
    1. Re:Titanium Material Properties by blakestah · · Score: 3

      Just so it's clear though, Titanium has some good points. Manufacturers seem to be able to build bikes out of it fairly easily. [snip]Much like Aluminum, it occurs in common alloys like 6-4 (6% Al 4% Vanadium) and in alpha and beta anneal forms, which can have pretty different properties.

      The pure metal is actually fairly easy to machine - I made my wedding ring from titanium bar stock. You can bet I didn't choose 6/4 ELI titanium for that.

      The titanium alloys are very difficult metals to machine. They have very high yield strength combined with a much lower elastic modulus than steel. This combination makes cutting titanium similar to trying to cut a hard rubber. It gives, but it doesn't want to yield. It grabs the bit.

      Also, titanium literally eats taps and dies for the same reason. It can get exspensive to work fast.

    2. Re:Titanium Material Properties by Anonymous Coward · · Score: 2
      Manufacturers seem to be able to build bikes out of it fairly easily.

      Not true. Many manufacturers build bikes out of it, 2 or 3 build really good bikes out of it. It's easy enough for them to weld a Ti frame, they simply do a variation on the TIG welds they do to Al, but the bike ends up costing 2x more and not being as solid a performer.

      To really build a Ti bike, you need to use shape tubes, Ti isn't nearly as stiff as Al and you want you $4000 Ti frame to be stiff so you can go fast, shaping the tubes can distribute shock differently and stiffen up parts of the frame. Shaping Ti tubes might be rocket science, I only know of 2 companies that do it standard, DEAN and Litespeed (Litespeed == Ti bikes) and you pay a premium for it they only do it on certain models and they are not cheap. Colnago, Pinerello, Bianchi, and I believe Pegoretti and Medici will build you Ti bikes with shaped tubes but they are custom order, again, not cheap. Make that very not cheap, a Colnago Ti-40 fully built can approach $10,000!

      I used to own a Litespeed classic (non-shaped) and it was like riding a wet noodle, I could move the bottom bracket simply by standing out of the saddle when I climbed. Now I ride Al or carbon, period. It was sexy riding a Ti frame but it just didn't have the ride I could get from Al and for the cost I could get one hell of a tricked out Al bike.

      On the up tick, Ti bikes last forever, the frames don't rust, break or deform. Class 2 pros like to ride them for that reason, they can ride one bike all year. They are less stiff so unless you're racing or hardcore it's a damn fine touring bike, debatably you can get better steal bikes (Reynolds 800 series is sweet and ultra light, they are doing awesome things with air cooled steal these days...) from Italy but Ti make a nice touring machine that you can put hundreds of miles on a week. Also, if you're 50 and you decide that you're going to "get back in to" riding, the usual thing to do seems to be dropping $4500 on a soft Ti bike that you can't race; personally I think that it's a great use for them, let the old folks buy them. Ti also seems to be a good fit for cyclocross and certain types of mountain bikers, I still prefer Al on a mountain bike because it's lighter and you do a load of climbing but Ti is insanely rugged and that's also a big concern.

      Carbon is where it is all going anyways, they can do insane things with that material and it is both stronger and lighter than Ti and they can dial in how stiff it is when they build it. Still, Ti is a remarkable metal, I just don't think it's the best metal for bikes.

  65. 707 by rjforster · · Score: 1

    It was the test flight of the 707 and it wasn't a barrel roll _as_such_. More flying around a helix, ie the axis of the rotation was not cocentric with the airframe. Anyway, the story goes that all aircraft can do this with no additional stress to the airframe and the test pilot knew this and just did it. Afterwards the boss told hom in no uncertain terms to never do anything like that again.
    There's a film of this happening. Don't know if it's been webifyed yet.

  66. Re:It has come to my attention by 1010011010 · · Score: 2

    OK, so this has CID 277, so that explains part of it, but it still amazes me that this post remains at +2. If this post was arguing PRO-religion/christianity/catholocism, it would have been moded into oblivion in .4 seconds. I'm used to living in this lost world, but the bias here is larger than I expected.

    So, what's your beef? What was anti-Christian about my post, assuming that that's what you've got the problem with? Any why post anonymously?

    ________________________________________

    --
    Napster-to-go says "Fill and refill your compatible MP3 player", which is a lie. It's not MP3. It's WMA with DRM.
  67. What's "aluminum"? by Seehund · · Score: 1
    Trust American stupidity to coat what must be the ugliest national monument in the world with a pale, shitty metal.

    I just wonder when they started misspelling "aluminium". Why do they complain about "ebonics" etc. not being real English when they can't write or speak real English themselves?

    I'm not trolling, it's the Americans! ;)

    Intel Pentum Outside.

    .-. .- -.. .. --- -....- .- -.- - .. ...- .. - .-.- - ...-.-
    --
    Help savingAmigaOS and a free PowerPC market
  68. Re:great for cyclists by bommels · · Score: 1

    Well it is still hard to make an titanium bike frame which beats a well constructed aluminium or carbon frame in terms of high stiffness at low weight.

    Titanium sounds great, but it's not *that* different from hi-tech steel. Slightly lighter, more elastic and a bit higher strength, that's all

    --
    UNOX - The worst operating system
  69. Re:That's all fine but... by Skipio · · Score: 1

    Defence is just as correct spelling as defense. This variant is mainly used in Britain though.

  70. My Titanium Wedding Ring by Bryan+Ischo · · Score: 2

    OK, this is certainly going to get lost in the shuffle but ...

    I have a titanium wedding ring, made of the Ti6Al4V alloy, which is the alloy that they use in those wonderful military applications. In other words, this is the really strong alloy; regular Titanium is, to my understanding, not all that strong.

    Titanium is nice and light and I think it makes for a great, somewhat exclusive, cheap ($200) wedding ring. But ... if your finger ever swells up you will lose it (the finger), as standard tools will not be able to cut the ring from your finger.

    Furthermore, it's not really what I was going for - I wanted the ultimate ring, the most indestructible I could find, but I settled on Titanium because it was cheap and easy to get a ring made out of it (www.titaniumrings.com).

    If I had it to do all over again, and I had the gumption to get going on the project early, I would have a tool steel ring made and have it coated with a TiN or TiCN layer, which should give it the strength and hardness to cut steel. Throw it in a wood chipper, and it would break the chipper and come out unscathed. That was my goal and I fell short with Titanium.

    If there are any entrepeneurs out there listening, I will give you a free business idea: get yourself a foundry which is good at working with tool steel, and a jewelry designer, and start cranking out indestrucible wedding rings. If you can use the green tint or blue tint Titanium Nitride coatings, so much the better. I think people would go nuts over "indestructible" wedding rings. The symbolism is great - the commmittment is indestructible, and so is the ring.

    Let me know when you have done so as I will be your first customer :)

  71. Re:Uses of titanium by z4ce · · Score: 1

    Okay... grammar nazi boy... let's see here.. first not knowing that tensile test with the same cross sectional area show that steel is stronger.... whoah... kay.... now.. do you think its possible to say that the original poster was not trying to totally scientifically correct? He was saying "roughly." Further, his comparison of Aluminum and Titanium CLEARLY are based on AMOUNT not weight. He said Titanium (itsself) is twice as strong. This is entirely true. Aluminum is %60 lighter, thus, from his post you can easily derive that aluminum will be about %10 stronger per unit of weight. Please, lose the attitude, nazi.

  72. Re:OH GOD DAMN! by jerrol · · Score: 1

    If you ever visit the Guggenheim Museum in Bilbao, Portugal, check out the building supports...they're Titanium. The metal was purchased, all at once, when the price of Ti was beneath the price of Al. Admittedly, this price inversion lasted only about a week...

    --
    Never let your fears overcome your dreams.
  73. Re:mmm robots by Lilior · · Score: 1

    battlebots, for one, restricts what weapons you can use, and EMP is on that list. In fact just about everything interesting is on that list. Lasers above 1 mW, liquids, adhesives, entanglement (but not entrapment) devices, heat weapons (flamethrowers, etc.), explosives, guns (untethered projectiles of any kind, tethered up to 10' ft.). About the only things you can do are shove, punch, drill, saw, and grind.
    The bot that i would make would use suction cups, or a material like iguana skin, to latch on, lift the bot up, and drill into the bottom. (for spite, just holding it still for 30 seconds wins, as well as having a backup weapon should someone manage to cut off the attachment device. (which would be armored, at least lightly)).

    --
    --Lilior
  74. Re:Welding is really hard by jerrol · · Score: 1

    I visited a Ti foundry and bar mill last year, they recycle every little scrap. Of course, the price of recycling is far below buying new material.

    On a side note, I now have a real cool paperweight...a small piece of 2" Ti rod.

    --
    Never let your fears overcome your dreams.
  75. Re:Hmm .. by darkonc · · Score: 1
    Damn, my Titanium VISA from First USA is worthless compared to the cheesy gold card I carry .....
    You think that's bad? My great grandfather was issued an aluminum card. Man, he's really pissed these days. They won't downgrade him to gold.
    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  76. Re:Macroscopic uses of Titanium by Moofie · · Score: 1

    I am an aerospace engineering undergrad, and we talked about this in my structures class this semester.

    Ti has SUPERB crack resistance and fracture toughness...FAR superior to aluminum. The maintenance costs of a titanium wing box would be radically lower than aluminum. However, fabricating such a large, mission-critical structure from titanium would be (with current technology) obscenely expensive.

    Note that the wings of most commercial jets are designed to flex a WHOLE LOT during flight. A 747 with a ~270 foot wingspan will allow its wingtips to displace +- 20 to 25 feet with negligible structural damage. However, this WILL acclerate the crack growth that ultimately leads to failure in aluminum parts. Fortunately, this crack growth phenomenon is well understood, and replacing the part well before it is compromised is part of the normal servicing regime for modern airliners.

    --
    Why yes, I AM a rocket scientist!
  77. Re:Titanium beer cans and whatnot. by davejenkins · · Score: 1
    The book tells us that the tools were ordered 'destroyed', but do you believe that? Do you honestly think that the CIA would actually throw something away or destroy knowledge? No way.

    I'm sure all the tools (except one set of masters) were destroyed, but the masters are in some warehouse in Virginia somewhere-- probably next to the Ark of the Covenant . . .

  78. Re:Why Aluminum and not Aluminium? by Billy+the+Mountain · · Score: 1

    Frugal American printers found that they could save on ink costs:

    Aluminium -> Aluminum, cha-ching 11%!
    Colour -> Color, cha-ching 14%!
    Favourite -> Favorite, cha-ching 11%!

    --
    That was the turning point of my life--I went from negative zero to positive zero.
  79. But dont forget.... by myosin · · Score: 2

    Aluminium is makes up around 8 percent of the earths surface, and titanium is a fraction of 1%. I doubt titanium will ever be as cheap as aluminium

    --

    -----
    "Almost isn't good enough - but it's almost good enough."
    -Me
    1. Re:But dont forget.... by scrytch · · Score: 2

      > This means that Beryllium is the lightest/strongest metal for practical use

      Except for the fact that it's highly toxic so it's not terribly practical to machine the stuff. There's more workers from Rocky Flats suffering from beryllium disease than radiation problems.

      --
      I've finally had it: until slashdot gets article moderation, I am not coming back.
    2. Re:But dont forget.... by SamBeckett · · Score: 2
      Aluminium is makes up around 8 percent of the earths surface, and titanium is a fraction of 1%. I doubt titanium will ever be as cheap as aluminium

      And don't forget that the Earth is realllly big. Less than 1 per cent of the surface is still a shit load, yo?

    3. Re:But dont forget.... by fatphil · · Score: 1

      Logic error!
      Less than 1% of a huge amount is not necessarily a huge amount.
      If it were 1.0e-36% it would be a small amount, wouldn't it?
      However, some tar heeled chappies (I think) indicates the composition is 0.62%, but this is from very old data. Far more than Carbon, for reference. So there is some hope...
      FatPhil

      --
      Also FatPhil on SoylentNews, id 863
    4. Re:But dont forget.... by Perdo · · Score: 2
      This is a truly good day. I have always appreciated your grammar comments but I am now glad to know you have some skill with real content as opposed to just delivery/constructive criticism. I have questions though.

      Is there any truth to the rumor that the Russian Typhoon class submarine uses a 6 inch thick Ti hull welded in only 6 passes, something western technology would require 140+ passes to weld?

      Would Ti be a good candidate for reinforcement wire in reinforced concrete structure due to its corrosion resistance?

      Has there been any research into titanium as an element of composites comparable with say, Tungsten/Boron wires in an epoxy matrix?

      Finally, Can the process used to make Ti cheaper be applied to Beryllium?

      --

      If voting were effective, it would be illegal by now.

    5. Re:But dont forget.... by tdm8 · · Score: 1
      This is why aluminum bicycles have thick thin-walled tubes, so they can't flex. When properly designed, aluminum will provide a better strength-to-weight ratio than titanium.

      Aluminum may produce the stiffest bike, but many cyclists are looking for something with a less bone-jarring ride. The weight savings of aluminum may be negated by the fatigue caused by absorbing all of the bumps.

    6. Re:But dont forget.... by myosin · · Score: 1

      I didnt say i wouldnt be cheaper that it is today, im just saying less Ti than Al so cost of Ti greater than Al. Supply and demand.

      --

      -----
      "Almost isn't good enough - but it's almost good enough."
      -Me
    7. Re:But dont forget.... by Timid_Monkey · · Score: 1
      we have been forming steel since the middle ages, it has a long way to go...

      Steel was first designed for mass production in the late 19th century by a man named Henry Bessemer--long after the middle ages. Iron was, at that time, the metal of choice for the rails during their boom. Unfortunately, iron was known for being malleable and would bend out of shape. Iron definitely had flaws that could be improved upon.

      Enter Andrew Carnegie and Bessemer. Ever wonder why there are so many things named after Carnegie and why you may have heard of the Bessemer process? In 1855 Henry Bessemer discovered a way to decarbonize steel. Andrew Carnegie traveled to England in the 1870s and saw this process in action, albeit low key. In 1875, the first steel plant was opened in the United States and soon thereafter, Andrew Carnegie was on his way to making steel the popular metal that it is today.

    8. Re:But dont forget.... by (deleted+-+SCI) · · Score: 3
      A practical application of this are new forceps used in brain surgery. A human hair is ~100-300 microns in diameter, while these forceps are ~0.6-1 microns in diameter. Brain surgens use these to hold brain neurons while performing surgery.



      I think that is amazing. Just in case you were wondering what a grammar nazi knows about Materials Science, don't.


      Also, don't ask what a Grammar Nazi knows about neurosurgery. "Brain surgeons" don't hold individual neurons during surgery. In fact, you would be very surprised to that common standard brain surgery tools include tongue depressors, spatulas (the tiny ones used to measure out chemicals, not the ones you use to flip burgers) and other 'blunt' devices rather than scalpels/forceps, etc. Despite its delicacy, the texture/consistency of the brain (especially as contrasted to the vascular structures within it) lends itself to certain rather unexpected techniques of manipulation.

      Further, medical science is nowhere near the level of manipulating individual neurons, and it is questionable whether it would ever want to -- the brain isn't like a microchip, where a single miswired trace causes a logic unit to fail. Single neurons are not that important, and a general principle of neurosurgery is to ablate (destroy) a region, and let the brain rewire itself around it (like the Net). If specific neurons are ever targeted (in our lifetime) it will be chemically (e.g. with tailored antibodies, etc.) With 10 billion neurons (and single axons that may run a tangled path many centimeters long) -not to mention the 100 billion 'support cells'- the brain is not amenable to 'simple rewiring by hand'. Have you considered the problem of locating and manipulating, any significant number of indivdual neurons.

      That is not to say that *researchers* don't often manipulate individual neurons for any number of reasons (in lab apparatus, not in patients). I'm sure that they will find a use for such micro-forceps in their work.

      DISCLAIMER: I am not a neurosurgeon, but I am a physician. I was also raised by a neurosurgeon, and spent way too much of my early 20's doing things like "emptying (squid) interneurons" -- squeezing them out like toothpaste tubes, so we could perform experiments on the cell membrane.

      --
      "But, it is well known, what strikes the capricious mind of the poet is not always what affects the mass of readers." -
    9. Re:But dont forget.... by Life+Blood · · Score: 3

      Note Grammar Nazi is an idiot. He knows no material science and did no research.

      Titanium isn't a superstrong superlight alloy. Titanium has roughly twice the specific strength of aluminum. Titanium also has approximately the same specific stiffness as aluminum. This means the aluminum is just as springy as titanium, but it breaks sooner. Look it up.

      Titanium will always be harder to work with than aluminum. True but not for the reasons you site. Titanium is about 50% stiffer than aluminum but is 200% stronger. This makes it a bear to machine as opposed to aluminum which is wonderful to machine. In terms of raw materials, the two may be close, but in terms of manufacturing aluminum beats titanium every time.

      Titanium may become cheaper than steel. Steel is not cheap due to its abundance or ease of refining. Steel is used in many application today because it is easy to manufacture. You can weld steel. Most of a products cost is not in raw materials, it is in manufacturing. Therefore steel is cheap.

      BTW as nice as titanium is for some things, it really doesn't matter. Compared to advanced fiber reinforced composites, titanium is nothing. Its most likely going to be too expensive to work with compared to steel and aluminum and not good enough as advanced materials go.

      --

      So far I've gotten all my Karma from telling people they are wrong... :)

    10. Re:But dont forget.... by spondylus · · Score: 1
      Steel was first designed for mass production in the late 19th century by a man named Henry Bessemer

      In the industrial revolution sense. People have been working steel since at least medieval times, just not on mass-produced scale. Check out a medieval armory, preferably a Middle Eastern or Asian one.

    11. Re:But dont forget.... by tlhIngan · · Score: 2

      Even though it covers < 1% of the earth, titanium is considered to be in the top 10 of the earth's most abundant elements. I believe silicon is the most abundant element.

      Saw that off a periodic table - that fact was pretty interesting in itself.

    12. Re:But dont forget.... by kfg · · Score: 1

      Very good, but you're off by a decade on or so on true commercial availability of Ti bicycles. I bought my Teledyne Titan "off the rack" in the early 70's.

      Wile it was a comfortable and resiliant ride it wasn't exatly a wet noodle either. The biggest probelm was that the spring rate of the frame wasn't damped, and on rough roads the fork could go into harmonic oscillation.

    13. Re:But dont forget.... by myosin · · Score: 1

      yeah, but it needs to be on the surface so you can acess it

      --

      -----
      "Almost isn't good enough - but it's almost good enough."
      -Me
    14. Re:But dont forget.... by Tycho · · Score: 5

      Well if you want to get technical about it Aluminum makes up 8.2% of the crust. Titanium makes up .56% of the crust. On top of this all Aluminum is mined from highly leached clay deposits near the surface. These deposits are formed in areas with a tropical climate and were only formed in the last 60 Million years. The Soviets tried getting Aluminium out of igneous rocks earlier this century. They even couldn't make Aluminum in an economical manner.
      At any rate Titanium is obtained from rutile or Ilmenite that are from ocean beach sands or titianium bearing igneous rocks. In the late 80's and early 90's the US produced 25,000 metric tons per year of Titanium metal. The other major use of Titanium is white piment for paints and for the same period, 1 million metric tons of Titianium pigment was produced per year. By contrast the US used 6 million metric tons of Aluminum in the mid 1990s. At any rate due to the rarity of Titanium deposits I doubt that Titanium will ever be as cheap as Aluminum. For that matter Titanium is a much harder metal than Aluminum and wears out tools that manufacture Titanium much faster. It is possible though that Titanium will be used in place of Aluminum in many cases. Don't count on Titanium replacing Aluminium cans though.

      --
      Impersonating Tycho from Penny Arcade since before there was a PA.
    15. Re:But dont forget.... by grammar+nazi · · Score: 2

      Alright, I'm going to get some facts from books and then I'll put them here. Tonight, I promise.

      --

      Keeping /. free of grammatical errors for ~5 years.
    16. Re:But dont forget.... by d_pirolo · · Score: 2

      Actually, O is the most abundant element in the crust, followed in order by Si, Al, Fe, Ca, Na, K, Mg.

    17. Re:But dont forget.... by d_pirolo · · Score: 2

      Actually, most of the titanium dioxide used in Ti-diodes, pigments, and catalysts in various industrial processes are derived from petroleum coke calcining.

    18. Re:But dont forget.... by ThesQuid · · Score: 1

      Hydrogen? In the universe, yes.
      On earth? No way.

    19. Re:But dont forget.... by grammar+nazi · · Score: 5
      Thank you, Tycho, for the informative comment.

      Here are a few more facts about Titanium:

      Titanium isn't a superstrong superlight alloy- On the periodic table, as you move up and to the left, the solid elements have an increasing strength-to-weight ratio. This means that Beryllium is the lightest/strongest metal for practical use. Aluminum even has a higher tensile strength-to-weight ratio than titanium. Why isn't aluminum considered a ubermetal, similar to titanium? I think it is. One problem with aluminum is that it fatigues when it flexes. This is why aluminum bicycles have thick thin-walled tubes, so they can't flex. When properly designed, aluminum will provide a better strength-to-weight ratio than titanium.

      Titanium will always be harder to work with than aluminum- Aluminum is lightweight and easy to work with. The industry has over 50 years of experience working with aluminum, whereas they have 30 years of good experience with titanium. Commercial products (golf clubs, bicycles) didn't start using titanium until the '80s and the decline of the Cold War, when the military-fed companies had to start selling to the civilian industry. Even after titanium knowledge gets closer to what we know about aluminum, we will continue to push aluminum, since it is cheaper and softer (i.e. cheaper to work with).

      Titanium does have great properties- Did you ever wonder why many titanium bicycles don't have any paint? There's no paint because they don't need any, titanium is one of the least reactive metals there is (ironically, this is what makes it hard to process, too). So, where other metals have to be painted to reacted to prevent corrosion, titanium is fine as it is. This property also makes titanium nice for biological applications (bones, valves, etc.).
      Another nice property of titanium is its resilience. Titanium has a relatively large linear elastic strain region, i.e. it's very springy. This is what makes titanium great for bicycle seat rails, but not neccessarily bicycle frames (unless you like the wet-noodle feeling on a bike). Before you flame me, realize that good design prevents this.

      Titanium may become cheaper than steel- I wish someone else would have pointed this out. Now that they can process titanium in one step, it may have a chance to compete with steel. Since we have been forming steel since the middle ages, it has a long way to go, but due to its strength-to-weight properties, corrosion resistance, and resiliance it could easily surpase Steel as the cheap standard metal. Perhaps the lack of painting on titanium can make up for its higher temperature (higher temp->more energy->more $$$) of processing. Since it would have a higher working temperature I could easily see it being used in engines and buildings. Ti's resilience may create for very Earthquake proof/fire proof buildings. If you talk to someone who works with Ti, they will say that it is too funky to machine and work with, it's resilience fights back against the machinist. I think that the machinists need to get used to the metal and that is all.

      If you read all the way to the end of this, now you'll see the good part- Titanium has many applications in the area of nanotechnology. TiNi has shape-memory properties which means that you can do cool stuff with it. For example, I've stretched TiNi Super-elastic wire. Basically, it was a wire that stretched similar to a rubber band. Also, by alternating thin layers of TiNi on the surfaces of other metals you can create various thermal strains and stresses due to thermal expansion anisotropy. A practical application of this are new forceps used in brain surgery. A human hair is ~100-300 microns in diameter, while these forceps are ~0.6-1 microns in diameter. Brain surgens use these to hold brain neurons while performing surgery.

      I think that is amazing. Just in case you were wondering what a grammar nazi knows about Materials Science, don't.

      --

      Keeping /. free of grammatical errors for ~5 years.
  80. Hmm .. by DigitalDreg · · Score: 2

    Damn, my Titanium VISA from First USA is worthless compared to the cheesy gold card I carry .. and I thought I was impressing the chicks at Denny's.

    1. Re:Hmm .. by FallLine · · Score: 1

      heh no, there actually is a titanium card now too. I got one in the mail a couple months ago, had quite the laugh.

    2. Re:Hmm .. by _xeno_ · · Score: 1

      Guess they're running out of precious metals... Titanium card? Weird.

      --
      You are in a maze of twisty little relative jumps, all alike.
    3. Re:Hmm .. by rswinford · · Score: 1

      I think its a platinum card, nice attempt though.

      rob

    4. Re:Hmm .. by King+of+the+World · · Score: 1

      Hey, can you imagine a world without zinc.

  81. Re:Nah by Peter+H.S. · · Score: 1

    "The Russians didn't have as much steal as the US does. This means that they had to get their metal some where else."

    I don't think that that is right. The USSR had an incredible amount raw material, and steel production had been a high priority since Stalin assumed power. Eg. the USSR produced more than 50.000 tanks of all types, until WWII ended. The postwar production was at least on the same scale.
    I think a better explanation would be the fact, that the USSR had the worlds largest reserve/amount af titanium.

    On a related note; The USSR civilian production system, and economy had been collapsing since the 30'ies. That meant that factories would need barter with other factories to get the rawmaterials they needed. A russian teacher I knew, claimed, that at one point, a showel-factory ended up with a huge amount of titanium. So of course they started a production of titanium showels, selling them for the ordinary fixed price of showels. Alledgedly, this happenend in the 70'ies, when titanium was still an outragious exotic material in the west.

  82. My teeth are already singing... by envision-x2 · · Score: 1

    Not gonna have a problem if i do break those TWO titanium wires that hold my braces together (they cost about 25-40% of my total treatment :)

  83. Re:It has come to my attention by 1010011010 · · Score: 1

    If your views had been supporting the Bible/Christianity rather than against it,

    Explain to me how my post was against it?

    ________________________________________

    --
    Napster-to-go says "Fill and refill your compatible MP3 player", which is a lie. It's not MP3. It's WMA with DRM.
  84. Titanium Chips by furchin · · Score: 2

    How cool! Now manufacturers will be able to advertise "super-strong titanium computers! Able to withstand everything!" Except the butchering that the wrong OS will do to the hardware :)

    1. Re:Titanium Chips by ncc74656 · · Score: 1
      Ever thrashed a titanium computer?

      Has anybody ever made such a beast?

      I want a titanium cased laptop now though. :)

      I thought the Panasonic Toughbook might've been such a thing, but it uses a magnesium case, not a titanium case. It's still an unusual feature, though...back in the day, NeXT clothed its boxen in magnesium, and that's the only other computer I know about that uses any kind of "exotic metal" as a case material. As for titanium, RhinoSkin has titanium cases for Palm organizers.

      _/_
      / v \
      (IIGS( Scott Alfter (remove Voyager's hull # to send mail)
      \_^_/

      --
      20 January 2017: the End of an Error.
    2. Re:Titanium Chips by MikeFM · · Score: 2

      Ever thrashed a titanium computer? I've seen people popping shots at them from elss than 6 inches (with a shotgun) and lil more than messing up the paint job. Was awesome. Wish they still made those machines. I want a titanium cased laptop now though. :)

      --
      At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
  85. as useful as aluminum? by maquina · · Score: 2

    Yes, perhaps in some future day titanium could get as cheap as aluminum. But would it transform our everyday life in the same way that aluminum did? I think the largest influence of the cheapening of titanium is going to be in engineering, and I dont think it is going to be as important as the cheapening of aluminum.

  86. Log: A Girl's Best Friend by Scot+Seese · · Score: 2

    Titanium? Forget that! Everyone knows that, with humanities' myopic nearsightedness, old-growth hardwood will be THE thing to own! No, you can't build missile casings or Aurora spy plane skin with it, but thanks to aggressive deforestation of old growth lumber, in 2215 a coffee table might cost you $25,000! REAL wood furniture will be accessable to only the filthy rich. "Vinyl Siding? What kind of LOSER are YOU? I have PAINTED WOOD SIDING on MY home. Get a REAL job!" (Roll the Ren & Stimpy Log Song)

    --
    THIS SPACE INTENTIONALLY LEFT BLANK.
  87. Aluminum processing plant by timcuth · · Score: 1

    Have any of you ever seen an actual electrolytic aluminum processing cell? I mean an industrial one. It is awesome.

    The plant I saw was Reynolds Aluminum in the Tennessee River Valley in north Alabama. There were multiple electrolytic cells. When you stood at one end, you could not see to the other end.

    Each cell used 96,000 amps. The plant was pretty much directly connected to the main output of the Wilson Dam. We were told that the plant used over 90% of the dam's output capacity and that the remainder supplied electricity to all the cities and towns over a large surrounding area.

    At the end of the cell was an electrical connection that looked about like the lead battery post and ring of a car battery. Except that the ring was about four feet thick and about twelve feet in diameter.

    Just trying to comprehend the amount of electricity going through there was what boggled my mind.

  88. Re:Aluminum was a "precious metal." by linuxscrub · · Score: 1
    In addition, the Library of Congress used (precious) aluminum in the somewhat ornate interior decoration.

    OT - Also the LOC was a key player during the early years of patents and copyrights.

  89. Titanium Fashion by Copperhead · · Score: 1

    Dang it! You mean this really cool Fossil titanium watch that I bought is going to be worthless?

    --
    Your reality is lies and balderdash and I'm delighted to say that I have no grasp of it whatsoever. - Baron Munchausen
    1. Re:Titanium Fashion by nekid_singularity · · Score: 1

      I got the one with four dials. Whats the ONLY reason to buy a watch made of Titanium? So you can tell people it is made out of titanium!

      --
      Numbers 31:17,18 Now kill all the boys. And kill every woman who has slept with a man,but save for yourselves every virg
  90. Hmm.... by Sneftel · · Score: 1

    It's cool that existing uses of titanium will continue at a lower cost, but I think that, realistically, it will be a while before we start to see titanium used in cans, cooking foil, etc. The reason is that most metalworking machinery is a very hing capital investment. Although some of titanium's metallurgical properties are similar to those of aluminum (aluminium for you Brits out there), much of this machinery would need to be replaced. If I read this correctly, aluminum would still be cheaper to extract from bauxite, due to the relative simplicity of the electrolytic process. With that said, I can't wait to see what new, cool things scientists decide to do with the new, cheaper titanium. An uncrushable beer can, anyone?

    --
    The opinions stated herein do not necessarily represent those of anybody at all. Deal with it.
  91. Re:Welding is really hard by drinkypoo · · Score: 1
    I read an article once on titanium bike frames, and titanium is really hard to weld. the welds on titanium bike frames will crack long before aluminum or steel frames.

    Yeah, but the best thing about aluminum's cheapness to be that you can cast it into the basic shape, then mill it, because you can afford to lose the shavings. Of course, when people machine things on a large scale, they recycle.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  92. Re:That's all fine but... by tie_guy_matt · · Score: 1

    Well I am sorry my grammar is not up to snuff. This isn't exactly a masters thesis or anything.

    When I was in grad school I worked at a lab that tested the seakers for the navy. We had the entire seaker and we also used to put the windows in a wind tunnel to see if they would survive.

    I beleive the sapphire is grown in a single crystal but I am not sure since I am an optical/electrical engineer and not a material science guy.

    With all do respect even though you haven't heard of sapphire lenses doesn't mean they don't exist. Yes sapphire is expensive but it is VERY strong. Sapphire only passes in the midwave and not the longwave which is why they use a different window material for longwave heat seaking missiles.

  93. Titanium foil? by gregh76 · · Score: 3

    So how long until titanium foil hits the shelves?

    1. Re:Titanium foil? by Slynkie'sEvilTwin · · Score: 1

      Now THAT would be some cool stuff. although from what others are saying, it'd be pretty impossible cuz titanium is so hard to work with...but still, imagine being able to wrap yerself up in full-body titanium armor before going to a disco party?

      shaft ain't got nuttin' on wolverine.

    2. Re:Titanium foil? by King+of+the+World · · Score: 1

      If it's thin enough anyone can bend it. We have some wafer-thin titanium at work (in the courtyard) that's rather malleble.

  94. Titanium helmets by darkonc · · Score: 4
    For those of you who don't know about the SCA (Society for Creative Anachronism), they do reasonably realistic recreataions of medieval times -- including combat (though they use padded and blunted weapons).

    One fellow had the bright idea of making himself a titanium helmet. It looked more or less normal, but it was incredibly light, and it gave him massive bragging rights..... Until he got into battle. The first head hit, he went down with a concussion.

    After that, the SCA changed the rules so that helmets had to have a minimal weight. It turns out that the added inertia is part of the protection that they provide.

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
    1. Re:Titanium helmets by jafac · · Score: 2

      He would have been better off with a titanium shield. I built a shield from lexan (polycarbonate; ie. bulletproof glass) (as opposed to the plywood or steel, or aluminum most people use), and it was much lighter. Greatly reduced the time it took to get the shield into position to block. A large, lightweight sheild makes you nearly unstoppable. come to think of it, prolly lexan is better than titanium for that too.

      I used lexan in the rest of my armor as well. I heat-formed it, painted it, and put in some decorative rivets, looked like hard-leather. Very light, extremely tough. Ah, those were the days. That suit is probably still out there somewhere, because I sold it when I quit.

      I did use a very stout iron helmet though. The lexan was great at distributing force, but I was smart enough to protect my head well.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
  95. Wow! by dragonfly_blue · · Score: 2

    Woohoo! Cheap 64-bit computing for everyone! And here I thought I'd have to take out a second mortgage!

    --
    Free music from Jack Merlot.
    1. Re:Wow! by XPulga · · Score: 1
      Titanium != Itanium

      I know Intel's chip naming is awful, but we should at least cope with it.

      I miss the days of Z80A, 65C02 and TI9929 but hopefully the guys at Transmeta are working so we can again compute with TM3200 and TM5400 instead of Celerons, Pentiums, Durons and Weirdiums. Meanwhile, K6-3's and K7's are still fine. :)

    2. Re:Wow! by dragonfly_blue · · Score: 2
      Oh, fer chrissakes, I was making a damned joke, referring to Intel's Itanium chip, and I get moderated down as "Offtopic"?!?

      From the Slashdot FAQ:."If You Can't Be Deep, Be Funny: If you don't have something truly developing to the topic, some humor is welcome. Humor is lacking in our lives and will continue to be promoted. Remember though, what rips your sides out may be completely inane to somebody else."

      Moderators 'round these parts have totally lost their sense of humour... *grumble grumble*

      --
      Free music from Jack Merlot.
  96. Titanium by Anonymous Coward · · Score: 2

    This stuff is getting seriously cheap already. When the Russians were putting up a titanium statue of Gagarin, you couldn't get the stuff for money or a reasonable amount of love. A few years ago the Russians sold off a submarine hull made of it, and it started showing up in golf clubs. You notice now that it is appearing in ordinary disposable batteries, hand tools sold via mass-mail, computer cases, etc. The Russians must be dumping it by the oxcart load to get foreign exchange. It's a fad, like cellophane, which was once a prestige material.

  97. MOD UP, please by SuperKendall · · Score: 2

    There aren't even any links in the artcile - and that was pretty funny!

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  98. Re:Problems with Titanium... by foolish+youngster · · Score: 1

    Yah BS. it is nearly as inert as gold when alloyed with nickel, and that series of alloys is what they use for prosthetic limbs and other medical equipment. The oxidation of Ti is so slow a person would have to live for about a thousand years to show any symptoms of poisoning. Another urban myth repeated without any minimum of reasearch involved is just another cowpie.

    --
    -- Defenestrate Microsoft!
  99. Re:That's all fine but... by grammar+nazi · · Score: 1
    After thinking about it for a while today, tie_guy_matt, I realized that the my reply made me sound like a jerk. I got excited that this story was about titanium and your comments was about sapphire. I was hunting for somewhere to step in and state my knowledge.

    I hate when someone replies to one of my own comments trying to discredit it with other facts. I realize now that I was doing this to you and for that I am sorry. In the future I will try to think of nicer ways to reply to other people's comments. Instead of 'as a matter of fact...' I could say 'in addition to...' or something.

    What you say about the sapphire missile lens is truly interesting and even amazing (because sapphire is so hard to make).

    Finally, your grammar was up to snuff in your first comment, but in your second you should have said, "With all due respect...". Sorry, I couldn't resist.

    --

    Keeping /. free of grammatical errors for ~5 years.
  100. Screw titanium by MustardMan · · Score: 3

    What I want is... Adamantium.

    Reinforced Skeleton, here I come!

    1. Re:Screw titanium by Chris+Mattern · · Score: 1

      > I doubt you'd survive the reinforcing process,
      > though, unless you also have incredible healing
      > powers. Even worse, if you survive the process
      > and get your super skeleton, you'll have to
      > wear a silly costume and get a stupid nickname.

      Not to mention the ridiculous haircut.

      > Doesn't sound like it'd be worth it.

      Indeed.

      Chris Mattern

    2. Re:Screw titanium by RazorJ_2000 · · Score: 2

      Yah, and just try getting on an airplane after that!

      --
      pi=sigma{n:0-infinity}[(1/16)^n][(4/(8n+1))-(2/(8n +4))-(1/ (8n+5))-(1/(8n+6))]
    3. Re:Screw titanium by crimsonic · · Score: 1
      hmmm... I want my curiosity cured~ what are the origins of "adamantine?" Is it a real mineral or fictional? I dunno. I just remember adamant armor from final fantasy and it made me think. X-men and Final Fantasy didn't make it up? Where'd it come from?

      --
      ~ The Irony is, The only reason I'm not at Berkeley right now is because I was on acid during my SAT's..
  101. Use Steel by nuggz · · Score: 1

    Assuming you select the appropriate steel.
    Steel is cheaper, stronger, easier to machine, and has a better strength/weight ratio. Then titanium or aluminum.
    Titanium only makes sense in VERY specialized circumstances, for most stuff you can get a cheaper steel solution that won't throw your budget out the window, and cause the machinists to kick down your door an bludgen you with bar stock.

  102. Re:Titanium beer cans and whatnot. by Argon · · Score: 1

    Yeah, I am a bit expensive. But I have no hassles working with Mr. Titanium :-).

  103. This is pretty cool by Invicta{HOG} · · Score: 1

    It was funny when I was traveling in Europe to see the "aluminum-ware" of all the royalty. What's cheap and throw-away today was amazingly hard to find back then. Hopefully this, mixed with new separation techniques for the rare earth metals mentioned in this month's Science help usher in all kinds of cool cheap alloys and nifty materials...

    Invicta{HOG}

  104. The Other Metals Mentioned... by ntd · · Score: 1

    Notice chromium was mentioned...imagin going areound bling blingin' with a chrome can of 7up in your hand...what would the ladies think...

    --
    -------------------------------------------
    1. Re:The Other Metals Mentioned... by ajna · · Score: 1
      .imagin going areound bling blingin' with a chrome can of 7up in your hand...what would the ladies think...

      Actually, they probably wouldn't think much at all of it, if whatever material in question was a commodity. It's things that are rare/or have their supply constrained (as in the case of diamonds) that are sought after. Make something ubiquitous, and it loses its value and appeal to most.

    2. Re:The Other Metals Mentioned... by Kwikymart · · Score: 1

      The ladies you want to impress are either really young or really stupid if they will be disracted by shiny objects like that

      --

      Buying a Dell computer is equivalent to dropping the soap in a prison shower.
    3. Re:The Other Metals Mentioned... by rswinford · · Score: 1

      this is a rap thing isn't it....

  105. Titanium will always be expensive in my life time. by bingeldac · · Score: 1

    One would think there there is always a big audience in aww of what Titanium is etc etc. Perhaps this could be just like Diamonds. I would have to read more into the industry, but I would think there are only a few select dealers of Titanium just like Debeers is to diamonds. Diamonds are less rare in nature than Ruby or Emralds, but due to Debeers having upwards of 95% of the worlds diamonds they can set the price as such. I would hate to see a great resource go to waste but who knows what those who control the Titanium market will do. Think of it sure its as cheap to make as aluminium, but diamonds are mined in Zimbabwe by Africans making less than a sweat shop worker in Indonesia.

    Bingeldac denies any responsibility for the
    spelling and/or grammatical errors above.

  106. You are false by nahdude812 · · Score: 1

    I am a chemist. As such, I'm quite familiar with physical as well as chemical properties of elements, and their alloys. Strength is a physical property, and it is quite widely known that titanium actually has the highest strength to weight ratio of any other element or alloy. That's why it's so widely sought after for applications such as aircraft, cranes, etc. Steel may be stronger, but at enough extra cost in weight that making a thicker structure of titanium to achieve the same strength will still result is a lighter structure.

  107. Re:Macroscopic uses of Titanium by fayalite · · Score: 1

    The story of the "barrel roll" is pretty famous here in Seattle, but it was (?late fifties?) with the 707 prototype, & NOT late sixties with the 747. I believe it was Tex Johnston (or some other famous test pilot working for Boeing). The plane was making a fly-by appearance at the annual Sea-Fair hydroplane races, and this was "The BIG" coming out appearance for the new jet. A lot of VIPs were in the audience just to see the jet. In his memoirs, Tex wrote about how he wanted to do something that would really show off his wonderful new toy (in other words sell the jet and save the company), so he picked a very flashy but relatively safe maneuver ... a barrel roll ... it is possible to do it so that it is a constant 1G stress force thru-out the whole maneuver ... the same force on the jet as if it were flying level. So without warning any of the company bigwigs, Tex did exactly that. And on the 2nd pass of the flyby, he did it AGAIN! Story goes that the Boeing president wanted to kill Tex from the reviewing stands, then he was shut-up by an impressed Airline President that said Tex was only doin' his job ... selling airplanes.

  108. Palm Rhinoskin cases by nbot · · Score: 1

    so i will finaly be able to afford a rhinoskin case??!?!

    --
    -nbot
  109. Titanium's impact on Rap by Temkin · · Score: 1

    What the hell is "bling blingin"?

    Uhhh-oh... I must be getting old. I've stopped absorbing new slang... No matter... I'll just buy one of the new bullet proof, light weight titanium SUV's that are just around the corner. Hopefully they won't get so light they drop diesel engines as an option. Nothing more fun than having a lowered Honda Civic DX (Don't forget the Type R sticker) pull up next to you at a stop light, both windows rolled down, playing that really loud distorted rap. Light turns green, romp on the accelerator, a little turbo lag, and rich injector mix builds up some nasty exaust. The turbo spools up just about the time the exaust pipe is level with the driver's open window. The plume shoots in one window and out the other. :-)

    Hmmm... Titanium turbine wheels might eliminate the turbo lag. Probably affect my timing somewhat. I guess I still have a few years of fun left.

    Temkin

  110. Titanium is a bitch to machine, form, weld, etc. so it will still be expensive to make titanium stuff compared to aluminum.

    1. Re:Nah by twinpot · · Score: 1

      And both the Ferrari 360 and Honda NSX make extensive use of Aluminium. The Lotus Elise and upcoming Opel VX have aluminium chassis that is bonded, with fibreglass body panels. The Renault Sport Spider has a welded aluminium chassis.

    2. Re:Nah by RobKow · · Score: 1

      Wrong! Thank you for playing... The audi A8 and TT have an aluminum body...

      The TT doesn't have an aluminium body, merely a few minor body panels, and visual accents. The A8 has an Al space frame, body panels, ad infinitum. The Honda Insight (A really cool gas/electric hybrid) has an all-aluminium body, as does the Panoz Esperante and the Panoz AIV Roadster (AIV = Aluminium Intensive Vehicle). The Audi A6 has an aluminium bonnet to save weight, and various other cars use Al in various minor parts as well, mostly for weight savings.

    3. Re:Nah by singularity · · Score: 1

      The idea, I think, is that eventually new machining techniques will also come along as well that will make working with Ti a lot easier.

      In the mean time, though, it is a pain to work with.

      It may never be as cheap as aluminum to extract and work with, but it will be a lot cheaper than it is now.

      --
      - (c) 2018 Hank Zimmerman
    4. Re:Nah by cerulean · · Score: 2

      actually titanium is forgeable, although it may be more difficult to forge than iron or steel. if I recall correctly, when you heat titanium to around near normal steel forging temperatures, its crystal structure shifts from hexagonal-close-packed to cubic-close-packed (if I recall incorrectly, I've got those backwards), which results in it being significantly softer, and possible to form. when it is cooled, the crystal structure changes back, and the titanium becomes hard and stiff once again.

      I've experienced this phenonmenon firsthand (wearing gloves, it's very hot) with a forge, some burning coke, a titanium rod, a hammer, and an anvil...

      as for machining, the bitchiness as far as I know is that it needs a lot of lubrication or special cutting fluid due to titanium's high coefficient of friction and inherent hardness.

      --
      -------------------- the list is long. dirac angestung gesept
    5. Re:Nah by tie_guy_matt · · Score: 2

      The Russians didn't have as much steal as the US does. This means that they had to get their metal some where else. They spent a lot of time perfecting titanium production. A lot of the titanium that is now on the market is from Russia. Legend has it that during the cold war the US government secretly bought titanium on the open market that came from russia for use in it's spie planes. While our subs are made of sperate pieces of steal the Russians used to make the hulls of their nuclear subs out of one piece of titanium. So we might not be able to work with titaninum very well in the west but in the east they may be able to help us out.

      On a side note aluminum is sometimes hard to work with as well. It has a low melting point and conducts heat and electricity very well. This makes it harder to spot wield than steal (which is why you don't see car bodies made of aluminum -- just engine blocks.) Notice that although aluminum is cheap aluminum bikes for example are still more expensive than steal bikes. Also aluminum tends to melt and "float" when you are working on it -- this makes working with it a pain sometimes. So although aluminum is cheap it is still more expensive for some applications. I bet the same will be true for titanium if it gets as cheap as aluminum.

    6. Re:Nah by sxpert · · Score: 1

      (which is why you don't see car bodies made of aluminum -- just engine blocks.)
      Wrong! Thank you for playing... The audi A8 and TT have an aluminum body...

  111. Re:It has come to my attention by 1010011010 · · Score: 1

    YOu'll have to do better than that. Cite scripture. Explain yourself. I remain unconvinced, and think that you're more a follower of the church than of Jesus. Also, "traditional christian beliefs" are not necessisarily biblical. Purgatory, for instance, is pretty traditional; but it's not in the bible.

    ________________________________________

    --
    Napster-to-go says "Fill and refill your compatible MP3 player", which is a lie. It's not MP3. It's WMA with DRM.
  112. Titanium Computer Casings? Nahh... by Ready+To+Strike · · Score: 1

    One of the reasons why titanium is not used except in specialised cases is not only the cost, but it's workability using hand tools. If you've ever done custom cases you would not the DISTINCT difference between working with steel and working with aluminium. Now picture the difference between Titanium and steel.

    --

    Engineering for Humanity.

  113. Re:It has come to my attention by 1010011010 · · Score: 2

    Those who spend their time chasing the 'Karma' being handed out by the 'moderators' at SlashDot, will only find torment in the end.

    I don't collect karma. I'm not kidding. My karma did not rise due to points allocated to that post.

    It has come to my attention that the user who posted the parent comment has a nick that is the binary representation of 666.

    You're darn tootin'!

    You may be earnest in your satanism, but I am one-hundred fold more earnest in my respect for and love of Jesus Christ, Our Lord. If you ask Jesus to come into your heart, he will. That's all you have to do. Then you can put your pursuit of 'Karma' and other worldy goods behind you.

    Snort. I know you're joking. :) However, theology is a pretty intersting topic. Did you know that satan and hell are largely inventions of the Catholic Church? And a lot of Protestant churches latched onto the fire-and-brimstone-hell, the model for which was the local trash dump in jerusalem (called "gehenna") which regularly caught fire. As far as I know, the Bible teaches that the 'wicked' will not be tormented for eternity in Hell (Gehenna/shaol/etc), but will simply be destroyed -- that is, cease to exist. The Gnostics began the process of creating a "Satan" -- an embodiment of evil -- from the biblical mentions of "satan" -- which just means "adversary," and "the devil" -- which means "slanderer." So "Satan" is the "father of all lies" in as much as the concepts and words that were lumped into the capital-S satan mean adversary-to-god, liar, deciver, slanderer, etc. Giving all evil corporeal form (no matter how fictional) allowed the Gnostics and their later followers to shift blame off of God for the things they thought were bad in the universe. Small-e evil became big-E Evil. All of the little opposers of Christendom were collected together and given form under the banner Satan.

    Notice also that Satanism is a derivative, not of Christianity, but of Catholicism. Black masses, inversion of the Catholic pentacle (which means "truth" and was painted on the inside of crusader's shields) to make the satanic pinnacle/goats' head, etc. In that Satan is defined as the antagonist/slanderer/etc. of catholicism, it is not surprising that it is, in fact, a dark mirror of catholicism. If something isn't adversarial or slanderous of catholic dogma, then it isn't satanic. Therefore, to be satanic, you must oppose, subvert and slander catholicism.

    So, the pursuit of Satanism is really a convoluted self-deception based on wishful thinking begun by Gnostics many centuries ago. Not that it doesn't result in actual harm to actual people, but by setting it up with its own independant reality, rather than acknowledging its true nature, people give it way too much credit and authority. If the adversaries of the Church had never been lumped into an all-powerful Prince of This Planet, Satan, I imagine that there would be much less "satanism" and organized evil in the world.

    Incidentally, what set you off originally was my 666-base-2 slashdot nick. It is unclear from the Bible that "666" has anything to do with the "satan" of popular doctrine. It is the "mark of the beast" -- but what is the beast? It might be the return of a global economic and military superpower akin in nature to the Holy Roman Empire. It's also used as a reference to "the Antichrist" -- which would be an enslaver rather than a liberator of Man; perhaps a single person, but more likely a system. It's also called a "great false prophet," a deciver of the people. It involves the ability to buy, sell and work contingent on the acceptance or refusal to accept the mark of the beast. I submit to you that the Beast was the Holy Roman Empire at the time that The Revelation of St John was written. The Romans used Fiat currency and printed lots and lots of it to finance their military ventures. They compelled its acceptance by the populace by the force of law. You couldn't work or be paid or buy anything without the use of Roamn currency. At the same time, Roman currency was a lie, a deception in and of itself. Unlike earlier Greece and Byzantium, which had gold standards (i.e., stable money actually worth something intrinsically), Rome money had no inherent or fixed value. In fact, its only value was that decreed by the state, diluted by people, unwillingness to accept it at face value. The real Beast is a military power that mandates acceptance of a worhtless currency by its subjects, which allows it to collect unlimited resources from them through inflation rather than the much more direct and difficult use of taxation. Rome finally went broke, and did it spetacularly. Byzantium, by contrast, had stable money (and prices) throughout its 800+ year ascendency, and its money was accepted the world over -- from China to Spain -- not because of the decree of law, but because it was actually valuable, and impossible to counterfeit. Metal is metal, or it is not; whereas fiat money merely has a stamp and a law backing it.

    Remember that Jesus warned against the love of money as the cause of evil. He attacked the moneychangers. Real money -- like that an byzantium -- represents real value (in goods or labor). False money -- as that used in Rome and by the moneychangers in galilee -- represents a lie and the desire for unearned wealth.

    Given this background, I would say that the Beasts of the modern day are the Federal Reserve, the IMF, the World Bank, and any other issuer of Fiat money; and the military powers that mandate its uses -- such as the United States, Britain, China, Japan, etc. It does not require prophecy to see that any time a government gives banks charter to print unlimited money, so that it can have unlimited spending power, that the banks will want to do all they can to get the governments in debt and keep them there, because they colelct the interest. Look at the history of the Rothschilds supporting both sides of the wars in Europe, and smuggling for both sides to boot. Look at how the Rothschilds, through JP Morgan and the Federal Reserve, draw the U.S. into World War I -- the banks benefitted massively through that war. Morgan was appointed banker and purchaser for the Allies. Total graft.

    So, the moral of this story is that there is not just one Beast, who is satan, but lots of beasts. Any institutionalized deception is the hand of the Beast. U.S. dollars bear the current Mark of the Beast (the words "federal reserve note" and "legal tender for all debts"). The Mark fo the Beast used to be Niro, whose face appeared on the money.

    ________________________________________

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    Napster-to-go says "Fill and refill your compatible MP3 player", which is a lie. It's not MP3. It's WMA with DRM.
  114. Re:That's all fine but... by h3x0r · · Score: 1

    What I don't understand is why they even needed a transparent material. Or any material at all. They just spent about 5-10 minutes transporting the whales. It's not like they lived in there for an extended period of time.
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    GetSystemMetrics(SM_SECURE) == FALSE
  115. Re:Uses of titanium by Wiggin · · Score: 1

    Ummmmm, you ask 1010011010 to back up his comments, but then provide no backup to your own?

    forgive me if i just don't understand.

    --

    "I don't need a compass to tell me which way the wind shines." - Mr. Furious, Mystery Men
  116. Re:Uses of titanium by Quintin+Stone · · Score: 1

    You've sadly neglected one of the more recent uses of titanium: firearms. Smith & Wesson and Taurus are now two of the biggest users of titanium in revolvers. A titanium cylinder greatly reduces weight and is just as strong as steel.

    --

    "Prejudice is wrong; you should hate everyone the same."

  117. Re:That's all fine but... by esonik · · Score: 1

    I found your post(#118) interesting. Just one question: why is MgF preferred over KBr ? The latter seems to be often used as window for IR-spectroscopy machines. Is it the fact that there exists a glassy phase for MgF ?

    As a sidenote: Sapphire is the material of choice in UHV (ultra high vacuum) applications when you need good thermal conductivity at low temperatures (below room temp.) and low electrical conductivity (insulator) at the same time (It's used as a spacer).

    Sapphire is also used as a substrate for deposition of thin films. I don't have experience in that field, however.

    Then there are of course Ti:Sapphire Lasers (Sapphire doped with Ti), their strength is the huge tuning range (1000nm - 660nm). The very first Laser back in 1960 was also based on Sapphire, more precise it was Cr:Sapphire, also known as ruby.

  118. Titanium armor is used in real combat by Mike+Greaves · · Score: 1

    In case the SCA people hadn't noticed, people don't fight with swords anymore ;-)

    Titanium makes excellent armor for vehicles and people, including titanium helmets. Real soldiers and police currently use titanium armour.

    Bullets have much more energy, but much less momentum than archaic weapons, so lghter metal *is* desirable in modern applications.

    --
    -- Mike Greaves
  119. Re:Titanium will always be expensive in my life ti by FFFish · · Score: 2

    While we're on this diamond subject, I'll mention that diamonds have been discovered in Canada's arctic. Look for "Dia-Met" on the web.

    They're one of the exceedingly few diamond mining companies that aren't controlled by DeBeers. And boy, is DeBeers pissed...

    Anyway, point is, if you're looking to buy a diamond, you might enquire about getting a North American diamond. It's a bit more unique than the others.

    Better yet, go with a simple gold band sans stone, and donate the money you saved by buying a goat for a third-world kid: http://catalog.heifer.org/goat.cfm
    (this organization has phenomenally low administration costs: most of the money you donate actually does go to the people you're gifting, instead of lining the CEO's pockets!)

    --

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  120. Bad news for Lens Crafters by AintTooProudToBeg · · Score: 1

    Wow, if titanium becomes as common and "household" as aluminum, glasses/snow-board/bicycle manufacturers won't be able to charge a premium for the space-age futuristic-sounding titanium!

    Might have to start making things out of fine pewter again.

    1. Re:Bad news for Lens Crafters by ajna · · Score: 3
      Wow, if titanium becomes as common and "household" as aluminum, glasses/snow-board/bicycle manufacturers won't be able to charge a premium for the space-age futuristic-sounding titanium!

      At least for bike frames, I was under the impression that most of the premium was because titanium is so difficult to work with. This suggests that costs may not fall too much for frames, even if the material becomes suddenly cheap.

      Merlin Metalworks, who make some of the nicest, imo (I ride a Kona myself as I don't have unlimited funds), frames on the market, has a titanium primer up that has some relevant info on how weld quality is very important when working with titanium, among other tidbits.

  121. Watches by cannes · · Score: 1

    Kinda offtopic but fos sil sells some cool titanium watches. There still more expensive than the aluminum watches, but still cool.

    --
    AK
  122. Could this mean more elemental commodities? by AFCArchvile · · Score: 1

    Think of it: maybe osmium anti-tank slugs (osmium is the densest material known to man: about 20 grams per cc) will become a commonplace piece of ammunition in the future. The railgun could throw that thing.

    --
    "Ancillary does not mean you get to rule the world." --U.S. Circuit Judge Harry Edwards, speaking to the FCC's lawyer
    1. Re:Could this mean more elemental commodities? by quietlysubversive · · Score: 1
      • when it was discovered that that significantly more than existed in pure form in the entire world at that time.
      I'm sorry, I can't understand that sentence... would you please rephrase it?
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      ----(o)----
    2. Re:Could this mean more elemental commodities? by Maurice · · Score: 2

      Wrong. Iridium has 22.65 gr/cc. Osmium is 22.61 gr/cc. Platinum is 21.09. Rhenium is 21.02.
      So you see the math says iridium is the densest. Since these are all precious metals, the most common element used for ammunition after lead is uranium (19.05 gr/cc) that has been depleted (i.e. nuclear waste).

    3. Re:Could this mean more elemental commodities? by Maurice · · Score: 1

      Also, the densest material KNOWN to man would be neutronium (the zeroth element), i.e. the stuff neutron stars are made of. It is basically all neutrons, with density reaching up to megatons per cubic centimeter. Neutrons pack really well since they are, well neutral. They are also highly radioactive beta emitters with a half life of about 10 min, after which they decay into hydrogen.

  123. Aluminum is *not* an *uber-metal* by Mike+Greaves · · Score: 1

    It's heat and oxidation resistance are pathetic - among the worst of all structural metals.

    Titanium is *robust* - strong, tough, strong at higher temperatures, highly oxidation resistant. And it's fairly light.

    Aluminum, Beryllium, Magnesium and *all* - repeat *all* - non-transition structural metals show either poor heat or poor oxidation resistance, or both.

    --
    -- Mike Greaves
  124. Re: But dont forget by Kwikymart · · Score: 2
    If you bothered to read the article you would find this little tidbit of info in the first paragraph:

    "That is not because it is particularly rare (titanium dioxide is the basis of white paint) but because it is hard to extract as a pure metal"

    If you are true about the 8:1 aluminum to titanium ratio it won't make very much difference. I doubt we will exhaust 1% of the earth's surface worth of alimuminum in our lifespans (correct me if my out of this world guesstimate is wrong)White paint is everywhere. They could maybe even (possibly) recycle cans of old paint just to make titanium.

    --

    Buying a Dell computer is equivalent to dropping the soap in a prison shower.
  125. great for cyclists by ragnar · · Score: 2

    I was surprised to see this on slashdot as this initially struck me more as a bicycle geek thing. Titanium is a marvelous material for constructing bicycle frames, but it is very expensive. I'm eager to see this come to fruition in the bicycle industry.

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    -- Solaris Central - http://w
    1. Re:great for cyclists by kfg · · Score: 1

      Unfortunately for the cylists among us the prime expense of Ti bicycles comes not from the cost of the material but from the cost of forming it into tubing.

      Not to mention the cost of the higly skilled welders needed to join the tubing and the wear and tear on the machine tools used to cut and form it.

    2. Re:great for cyclists by RobNich · · Score: 1

      Moderators WTF?!?!? Redundant?

      Titanium is also used for laptop/notebook cases, and other techie items.

      --
      Hello little man. I will destroy you!
  126. Re:Titanium beer cans and whatnot. by rgmoore · · Score: 2
    I don't even want to imagine what it's like to weld.

    It is indeed a major bitch to weld. It is quite chemically reactive, even more so than aluminum which is part of the reason that it's been damn expensive to produce until now. The result is that you need a more than ususually inert atmosphere to do your welding. You can't even use nitrogen as your intert gas because Titanium will burn in a pure nitrogen atmosphere; you have to use Argon instead which is a fair bit more expensive. IIRC, for really large welding jobs, like airframes and submarine hulls, they've found that it's actually cheapest to put the thing that they're welding into a room with an inert atmosphere and have the welders wear breathing masks. This is obviously quite a hassle compared to working with Aluminum and absolutely outrageous compared to steel.

    --

    There's no point in questioning authority if you aren't going to listen to the answers.

  127. mmm robots by MikeFM · · Score: 2

    I'd be able to build robots w/ titanium bodies. It's to expensive for me now. I always wanted to try being in one of those robot battle shows. Not one with remote controls but with AI bots. That'd kick ass.

    --
    At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
    1. Re:mmm robots by bse · · Score: 1

      actually, over here in england there are quite a few robots on "Robot Wars" that have titanium armour. this years batch of robots are probably the best ever. i always miss the bit where they say how much the 'bot cost to build though.. =o

      --
      bse - the cow that goes.. boo? ->
    2. Re:mmm robots by MikeFM · · Score: 2

      My baby design is a almost solid metal sphere w/ no external moving parts except for now and then when it shoots one of it's weapons out to attack. I was considering an accelerated spike that'd been ultra-heated. A drill might be kewl too. The benefit of a sphere is it's so solid, nothing to break off and it's stresses all equalize well. Also it's always upright because it has no top or bottom. A shame they don't allow bots to fly or anything awesome like that.

      --
      At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
  128. Re:Titanium wedding band by blakestah · · Score: 2

    I don't do custom orders, although I do make some for friends.

    There are titanium wedding ring places online from which you can order. One-off titanium in New England is such a place.

  129. Re:That's all fine but... by esonik · · Score: 1

    The problem with Sapphire is, that is so hard and thus you need diamond to work it. Even then you have to proceed very slowly. Making a hole in a piece Sa can take hours and will cost considerable machine time.

  130. ribbed aluminum by kidlinux · · Score: 1

    Ever see a can of Sapporo Draft? It's a Japanese beer, and is very good. Their cans are aluminum, and ribbed. Because of the ribbing they are *very* difficult to crush.

    --
    -kidlinux.
    1. Re:ribbed aluminum by StarKruzr · · Score: 1

      The trick is to twist it a bit before you try to smash it.

      Give it a little help before you try and you can crush almost any beer can.

      --

      +++ATH0
  131. Yay! by atma · · Score: 2

    My plans for a 15 foot tall war-mech are finally feasible! >D

  132. Possible drawbacks? by Amoeba · · Score: 2

    One thing not mentioned in the article is how much calcium chloride is needed to produce the titanium... not too mention how often the electrolyte bath can be reused before the effectiveness of the conversion from solid titanium dioxide electrodes to titanium might start to fail. I'm assuming the basic principle behind this is similar to how a battery generates current until the chemical reaction dies from dilution.. Some /.'er with a more recent chemistry background care to comment? It's been way too long since I was in school learning this crap.

    If the reaction has a relatively small window then the gain of using this process might be outweighed by the cost of managing/disposing of the spent calcium chloride...

    It'll be interesting to see where this goes.

    --
    Do not taunt Happy-Fun Ball
    1. Re:Possible drawbacks? by WickedDyno · · Score: 1

      You don't seem to understand how electrolysis works. The CaCl is not used up -- it's just a conductor of electricity.

    2. Re:Possible drawbacks? by XChemie · · Score: 1

      And you sir, seem not to understand that the oxygen (oxide, actually) from rutile goes into the calcium chloride to form calcium oxide, which has a much higher melting point than the chloride salt (the chloride would presumably get oxidized at the anode since chlorine is less electronegative than oxygen). This would alter the properties of the electrolyte, though I don't have the phase diagram handy to describe exactly how. It is an important engineering problem for this to be an economically viable alternative to the current titanium production process.

  133. Re:Aluminum was a "precious metal." by Chris+Mattern · · Score: 1

    > Napoleon had a banquet setting made of
    > aluminum. It took half the refined aluminum in
    > the world to produce it.

    Only his most favored guests got to use it.
    Lesser lights had to be satisfied with plain
    old gold.

    chris Mattern

  134. This is great news for cars! by wbattestilli · · Score: 1

    Because titanium can be used in place of steel in many applications, it would make a great car body. It doesn't rust.

    Even if you can't stamp it using a press (remember the huge elastic region) it would be great for an exhaust or a radiator. I'm sure that mfg. processes can be worked out for using it in just about anything. Alunimum is completely different from steel, but we've figured that one out.

    Those of you who live in a place where they salt the roads in the winter or live on the ocean can appreciate this most.

  135. Titanium beer cans and whatnot. by bmo · · Score: 5

    I'm a machinist, and as an Expert In The Field, yeah, it would be neat to see a titanium beer can, but....

    Titanium is a *bitch* to work with. It does *not* want to be worked. It doesn't like to be turned, milled, or ground, and if you're using a surface grinder and oil as a coolant, keep a fire extinguisher handy.

    Or just shut off the oil.

    I don't even want to imagine what it's like to weld.

    Anyway, I digress...

    Yeah, it'd be cool to see titanium as cheap as aluminum. It could be useful where aluminum cannot take the place of steel. It still won't make aluminum any less useful. Aluminum is *much* easier to work with (6061 alloy, anyone?), and therefore, less expensive for a finished product. You'll still see aluminum beer cans and aluminum engine blocks in the future.

    1. Re:Titanium beer cans and whatnot. by jafac · · Score: 2

      Not to mention, about 10% of people are "allergic" to Argon gas. That is, the presence of Argon in significant quantities causes major irritation of the lungs and breathing passages. Don't know why. I just know that it makes me sneeze. And that also limits the amount of people you can find that can even do this kind of welding.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    2. Re:Titanium beer cans and whatnot. by phillymjs · · Score: 4

      In the book Skunk Works there's a pretty good account of how the Lockheed guys had unbelievable problems working with titanium during the construction of the SR-71.

      They had to develop special procedures and tools, and eventually got good enough working with it to efficiently mass-produce the Blackbird, but the book also mentions that their tools were ordered destroyed when the project was end-of-lifed, and most if not all of the guys who developed those procedures are probably worm food by now. It is workable, but if all the handling information was destroyed, the procedures will have to be rediscovered.

  136. ughh by vectus · · Score: 1

    DAMN ALCHEMIST!!! think they can change the world!! i'm sure someone sold their soul to make this possible.

  137. Teeth! by Floody · · Score: 1

    I have a four tooth bridge composed of titanium underneath a ceramic coating (which is dyed to look like natural teeth). It's very aesthetically pleasing; quite impossible for the casual observer to notice the difference between it and real teeth. It was also quite expensive ($3500).

    Nobody likes to lose their natural teeth; my sole consolation was that I could "officially" state that I had a piece of titantium "in" my body (the bridge is permanently cemented to two natural teeth which have been filed down). Hell, it's almost bionic; they'll far outlast real teeth. If I'm ever involved in a major air/auto accident at least they'll be able to "identify him by his bridgework."

    Now that titantium stands the chance of becoming common place, I'll be just another geek with titanium implants.

  138. good uses for titanium by Pink+Daisy · · Score: 2

    This could be a tremendous environmental boon. One of the big costs of fuel cells is the titanium catalyst. If the price were brought down a lot, that would probably speed development and acceptance of fuel cell cars, not to mention the possibilities for other devices... I wonder if they would be cheap enough to replace the UPS on my computer. Or if not, at least the 20 or so UPS's on the computers at my old workplace. One car-sized fuel cell could easily power that many, and might be easier to have installed then a gasoline or diesel generator in an office building.

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    1. Re:good uses for titanium by Tassach · · Score: 2

      I thought the catalyst in fuel cells was platinum, not titanium. I could be wrong.

      --
      Why is it that the proponents of "one nation under God" are so eager to get rid of "liberty and justice for all"?
    2. Re:good uses for titanium by Pink+Daisy · · Score: 1

      No, you're right. I remembered that shortly after posting, and posted to ignore myself under that. But before I was moderated up, so that part isn't my fault, at least!

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  139. Why Aluminum and not Aluminium? by [Steve] · · Score: 1

    What has always puzzled me is why is the American spelling of Aluminium missing the second "i"??

    hmmm

    Steve

  140. Tough to cast also by David+Ishee · · Score: 1

    It is also very difficult to make castings with titanium. You have to cast it inside an inert atmosphere (no O2) to prevent it's very rapid oxidation at the elevated casting temperatures.

    These requirements make it very expensive to cast.

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  141. Uses of titanium by 1010011010 · · Score: 5

    Titanium is as strong as steel, but 45% lighter. It is 60% heavier than aluminum, but twice as strong. Not surprisingly, it is often used in aircraft and missle hulls, as well as lacrosse sticks and mountian bike frames. It's used in that rainbow-hued metallic jewlery available at the mall. Because it's not corroded by salt water, it's used in desalination plants, propellers and other marine applications (including lures). Titanium is used to make "Shape memory alloys", notably nitinol (nickel-titanium). You can use nitinol wire to make walking robots, with the nitinol used as the musculature. It it used in pigments and is what makes white toothpaste white (TiO2). In fact, this is its major use. Plus, it's shiny. :)

    ________________________________________

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    Napster-to-go says "Fill and refill your compatible MP3 player", which is a lie. It's not MP3. It's WMA with DRM.
    1. Re:Uses of titanium by po_boy · · Score: 5
      Don't forget medical supplies like implants. The human body doesn't reject titanium and it doesn't rust, so that's what they make the screws and stuff that they use to put humpty-dumpty back together again.

      cool, hunh?

    2. Re:Uses of titanium by billh · · Score: 2

      Wow. Without titanium, none of this stuff would work! Gee, thanks Mr. McLure!

  142. Re: But dont forget by myosin · · Score: 1

    Im not saying it will be expensive im just saying itll be more expensive than Al becuase there is less of it. Not that it is rare... TiO2 is the base for all paints... when you want to paint your bedroom pink, the paint store guy gives you a funny look, then puts some pink tint in a can of white paint. Just because your sister costs more than your mother, doesnt mean she is expensive.

    --

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    "Almost isn't good enough - but it's almost good enough."
    -Me
  143. Hmm by Dest · · Score: 1

    Well, yeah titanium may be cheaper but does that make it anymore usable? It weighs more than aluminum, right? It is stronger than aluminum. So it will just be cheaper. Not any more useful.

    1. Re:Hmm by XChemie · · Score: 1

      Whenever an important resource gets cheaper it gets more useful. Remember, alumium was pretty useless when it was more expensive than gold, but once Hall (and independently Haroult) came up with the electrolytic reduction process, aluminum became orders of magnitude more useful. Economics plays a vital role in the usefulness of a material.

  144. Re:Macroscopic uses of Titanium by DillPickle · · Score: 1

    There was a film made of this little aerobatic stunt. I saw it a while ago on the t.v. history channel. The test pilot was probably wondering if he was going to get fired. He did not. ;-)

  145. Alcon Aluminun by greenlante3rn · · Score: 1
    Hi, this is sorta cool because my dad just got a job working at Alcan, the worlds largest producer of aluminun. Anyway the storys preety cool, but you have to remember it still takes like 550 megawatts of power to make aluminun(not sure how much) but that is a lot of power. Thank god that Alumniun can be recycled almost indefintly

    Anyway what good is titamiun, so what if we can make all those cool space ships we see on T.V, the ones with all those cool lasers and green chicks.

    --
    Theres one problem with reflecting your reality, sometimes your reality starts to reflect you.
    1. Re:Alcon Aluminun by greenlante3rn · · Score: 1
      Acctuly Mr. Coward, I am quite literate. I have shelfs upon shelfs of books and manuals that I have gone through. Just because I don't give a flying monkey about spelling does not mean I can't read.

      And for your information I prefer weed to gaoline.

      --
      Theres one problem with reflecting your reality, sometimes your reality starts to reflect you.
  146. Titanium has it's problems by intmainvoid · · Score: 2
    Titanium is not just an outright replacement for aluminum. In offshore yacht racing, titanium is banned as a material for the railing posts - the titanium was failing after being welded - and the rails of a yacht are one thing you don't want failing!

    Sometimes it's better to stick with materials that we properly understand.

  147. Re:That's all fine but... by Aash · · Score: 1

    Damn! You beat me to it.

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    --
    These aren't the droids you're looking for.
  148. Aluminum was a "precious metal." by Speare · · Score: 4

    When the Washington Monument, National Mall, Washington, D.C. was completed, a one-pound chunk of aluminum formed the very tip of the monument. Reasoning: it was a precious metal at that time. It was akin to placing a gemstone there.

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    [ .sig file not found ]
    1. Re:Aluminum was a "precious metal." by FlyingBeagle · · Score: 1

      Actually, at the time the monument was capped (around 1880, IIRC), aluminum cost more per ounce to produce and refine than gold.

    2. Re:Aluminum was a "precious metal." by Slynkie'sEvilTwin · · Score: 1

      I bet a hell of a lot more people would visit the monument if they had just nailed a bunch of flattened-out budweiser cans to the top of the thing.

  149. see-through Star Trek alumimum... by mozkill · · Score: 1

    Ok, when they are able to manufacture something like see-through Star Trek alumimum for cheaper than die-cast metal... then i'll be impressed.

    Just kidding, I live right next to an aluminum plant .... oh no... i'm getting another one of those darned headaches again... gotta go..

    he...he...

    --

    -- Betting on the survival of the media industry is a serious risk. I advise investing elsewhere.
  150. Re:Transperent Titanium?? by mozkill · · Score: 1

    Wasn't there an article on slashdot about 1-2 years ago about this?

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    -- Betting on the survival of the media industry is a serious risk. I advise investing elsewhere.
  151. The metal is "steel", not "steal" by Tassach · · Score: 1

    Just a minor pedant...
    "Steal" is a verb, meaning "to take that which does not belong to you."
    "Steel" is a noun, meaning "an alloy of Iron.
    We now return you to your normally scheduled browsing...

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    Why is it that the proponents of "one nation under God" are so eager to get rid of "liberty and justice for all"?
  152. oops... ignore me by Pink+Daisy · · Score: 1

    I really should check my facts before posting.

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  153. working with titanium by danyeo · · Score: 1

    But since they will be using electrolysis, it may be possible to create the form with titanium oxide THEN to change it to titanium, getting rid of all the annoying metalwork that has to be done.

  154. Weird Prices in AUS 4 Aluminum! by Macfox · · Score: 1

    It's cheaper to import Aircraft Grade Australian aluminum from the US, than to buy it directly in Australia!

    Figure That!

    --
    Area51 - We are watching...
  155. there goes the neighborhood by MortimerK · · Score: 1
    send loads of it back to Earth via a rail gun to a known impact point

    Hrmmm...i hate being a Not-In-My-Backyard'er, but I'd be lobbying my council if a sign was suddenly erected next door: "Future location for Lunar Titanium rail-gun target."

    This is not a looney as it sounds

    da-dum *ting*

    1. Re:there goes the neighborhood by Anonymous Coward · · Score: 1
      Hrmmm...i hate being a Not-In-My-Backyard'er, but I'd be lobbying my council if a sign was suddenly erected next door: "Future location for Lunar Titanium rail-gun target."

      And this is why God created Wyoming.

  156. Re:That's all fine but... by tie_guy_matt · · Score: 2

    It's called sapphire (an aluminum oxide.) In it's pure form it is clear from the visible all the way down to the midwave IR. Yes if you put impurities in it it turns pretty colors (basis for purple sapphire stones, rubys and other gem stones.) But you can see right through industrial sapphire with no problem. It is the second hardiest window material known to man. The US government uses it as a window to cover the seaker unit on a heat seaking missile. Sapphire is the only material that passes the IR used for such missiles and is strong enough to survive on the end of a missile that is going much faster than the speed of sound. The only problem is that it is difficult and expensive to make windows that are very large. If you could make your windshield out of it then it wouldn't crack as easily and your car would be cooler in the summer since sapphire doesn't block the IR. While in grad school my advisor spent a lot of time and money studying industrial sapphire. He always said it was the clear aluminum as seen in Star Trek :)

  157. Doh by Altheus · · Score: 2

    Drink the can first, jeeze! They didn't teach you anything in college.

  158. Re:OH GOD DAMN! by Altheus · · Score: 1

    Lol, I don't think it'll become cheap that quick! However, I wonder what the price of titanium/aluminum is now, per oz/gram or whatnot.

  159. Re:Would this cause a stock market problem? by Maurice · · Score: 1

    IIRC for a long time now the dollar is no longer based on gold (i.e. the federal reseve does not hold equivalent amount of gold anymore). Ditto for other currencies.

  160. Re:Would this cause a stock market problem? by Altheus · · Score: 1

    This is gonna make Yahoo! stock skyrocket. BUY NOW!

  161. They could build a really large bridge by Altheus · · Score: 1

    to the moon!

  162. thickness. by child_of_mercy · · Score: 1
    it all depends on the thickness of the can.

    if the aluminium were a quarter inch thick it would hurt like hell.

    maybe a titanium can could be made even thinner?

    --
    'There is a Light that never goes out.'
  163. Strength to weight ratio. by Anonymous Coward · · Score: 1

    Titanium is denser than aluminum, and it's stronger than aluminum. I'm not sure of the exact figures, but titanium has a better strength to weight ratio than aluminum. So, a piece of Aluminum is weaker than a piece of titanium with the same weight. Which means that, for example, a bike frame made from titanium can weigh less than one made from aluminum and still be just as strong. Also, you can make a lot of really cool alloys from titanium (not that you can't make a lot of really cool alloys from aluminum). Have you ever seen those nigh-indestructible frames for glasses? You know, the ones that can be twisted any which way and spring right back into shape? Titanium alloys.

  164. Abundant by SlashGeek · · Score: 2
    Actually, Titanium is one of the more abundant metals here in North America. The problem, up until now, has been refining it is very expensive. This should help change that. However, the fact that it still has to be alloyed with Chromium and Vanadium (both rarer metals) to be usable will keep the costs from ever reaching "cheap".

    --

    --I assume full responsibility for my actions, except the ones that are someone else's fault.

    1. Re:Abundant by SlashGeek · · Score: 1
      Whoops, I apolagize if my post was a little redundant to what was in the article. The link to the article wasn't working at the time when I posted. It worked ten minutes later.

      --

      --I assume full responsibility for my actions, except the ones that are someone else's fault.

  165. Re:That's all fine but... by grammar+nazi · · Score: 3
    Sapphire is the only material that passes the IR used for such missiles and is strong enough to survive on the end of a missile that is going much faster than the speed of sound.
    I may be the grammar nazi, but I my Master's degree is in ceramic engineering and I'm afraid I'm going to have to correct that statement. The government must have two materials in use at the missile tips, the other being MgF (called IRTrans). My thesis was about IRTrans, and although it is not transparent to visible light, it is nearly transparent to IR light and it is also very strong. Since it exists in a glassy state (as opposed to Sapphire), it's cheaper to produce than Al2O3. To be honest I have never even heard of Sapphire IR lenses. My research was funded by the dept. of Defence and the only IR lenses we worked with were MgF (IRTrans).
    --

    Keeping /. free of grammatical errors for ~5 years.
  166. Re:Titanium will always be expensive in my life ti by K8Fan · · Score: 2
    Perhaps this could be just like Diamonds. I would have to read more into the industry, but I would think there are only a few select dealers of Titanium just like Debeers is to diamonds.

    De Beers managed to increase the preceived value of diamonds though a carefully planned campaign of giving them to female Hollywood stars in the 1940s. Before that they were (rightly, IMO) considered rather boring.

    Think of it sure its as cheap to make as aluminium, but diamonds are mined in Zimbabwe by Africans making less than a sweat shop worker in Indonesia.

    Yeah, but diamond mining requires moving a huge amount of material to get a few diamonds. Titanium mining requires moving a large amount of material into a smelting facility. This process is not going to substantually change things other than making it cheaper. But it is going to change the lifestyle of titanium salesmen.

    The main thing that excites me about this news is the possibility of airplane makers including more titanium in airplanes. That is a good thing. Stronger, lighter planes are always good.

    --
    "How perfectly Goddamn delightful it all is, to be sure" Charles Crumb
  167. Re:Credit Card inflation. by Mr+Z · · Score: 1

    Naw... Un-nil-hexium Visa! (You know, w/ the 1.06% APR... ;-)

    --Joe
    --
  168. Sweet! by ragnarok · · Score: 1

    Now maybe I'll actually be able to afford one of those kick-ass titanium barrels for my paintball gun :)

    --
    Search first, ask questions later.
  169. Macroscopic uses of Titanium by ThesQuid · · Score: 2

    Actually, the concept is not really that titanium will replace aluminum but that it will be in the same order of magnitude in price. Where the price really makes the difference and where the real usefulness will be is in large objects. Bridges that don't rust, supertankers that are stronger, ultra-tall skyscrapers, jumbo jets that can take more load before the wings fall off (ok, that is an aluminum replacement...I wonder if they'll be able to do a loop?)

    1. Re:Macroscopic uses of Titanium by Schemer · · Score: 1

      IANAAE (I Am Not An Aeronautical Engineer), but I remember reading that most airliners are already strong enough to do loops and dogfight and stuff. The story i remember hearing is that when the 747 was being first tested, the test pilot took it through a barrel-roll after the prototype had passed all the normal tests. Now that's something i'd love to see!
      --

      --
      A buddhist walks up to a hot dog stand and says ``Make me one with everything.''
  170. Re:That's all fine but... by SlashGeek · · Score: 1
    If you are the "grammar nazi" then you should realize that "defence" is spelled "defense". Perhaps we need a "spelling nazi". Just my $0.02

    --

    --I assume full responsibility for my actions, except the ones that are someone else's fault.

  171. Some titanium info by tap · · Score: 4
    I remember reading an interesting post about the titanium industry in rec.bicycles.tech a while back. So I went and found it on dejanews so I could whore for karma. Actually, I just thought other people might find it interesting too.

    As one of those responsible for the titanium rush, perhaps I can shed some light on where the titanium used in bikes comes from.

    Most of the titanium used in bikes comes from Australia. Yup, the deserts of western Australia are the source for most of the titanium ore used in the world today. Titanium ore is an abundant resource (titanium is the fifth most abundant metallic element on our planet), and white sand is the best place to find it.

    Most of this material never is never processed into metal. Over 90% is refined into titanium dioxide, a common white pigment used in paint.

    The most common destination for the sand used in making metallic titanium is China. The Chinese produce a very high quality titanium sponge that is used worldwide to produce primary mill products all over the world. The United States, France, Russia, and Ukraine all produce sponge as well. Most US producers of primary mill products use a significant amount of Chinese produced titanium sponge.

    In most cases, virgin material is mixed 1:4 with scrap material making titanium one of the most recycled metals. This is where the Russian or Ukraine material comes in. Most scrap from the former Soviet states is contaminated, and cannot be used to produce ingot for tube production. Material with high levels of chemical contamination can be used for low quality castings, and finds its' way into golf club head, valve bodies, etc.

    About the only titanium tube that you will find that contains significant amounts of Russian material is tube from Russia. There is not a great economic advantage in using poor quality scrap from Russia, when high grade domestic scrap is available in the United States.

    Litespeed uses material from Ancotech and Haynes International. The sponge used to produce the raw material for these tubes is from either China or Henderson (Nevada) depending on the price. Orement/Wah Chang or Timet produce 100% of all the starting billets used by the big three companies in the United States (Ancotech, Haynes International, and Sandvik Special Metals).

    Oremet (Albany Oregon) has broken and recycled an entire pressure hull from an Alpha attack sub. None of the material was used to produce ingot for tube production, but this may be a source for much of the Urban Mythology surrounding bikes made from radioactive Russian titanium. Most of the recovered material became golf driver heads.

    Gary Helfrich Arctos Machine

  172. Re:Titanium will always be expensive in my life ti by bdjohns1 · · Score: 1

    That, and it doesn't corrode. Pure aluminum's rather weak from a structural fatigue standpoint...so they alloy it with iron and copper to make aircraft alloys, like 2024, 7050, 7076, etc. Problem there is you get electrolytic corrosion which gets particularly nasty when you fly in coastal environments. Aloha had a plane that had some skin peel off because of this. Titanium skin/rivets would be much more preferable, since they're not nearly as susceptible to corrosion damage.

  173. Re:waaait a minute by AFCArchvile · · Score: 1

    we don't wanna be shooting miniature black holes around. And think of it: once neutronium decays into hydrogen, it'll be like farting in a brushfire.

    --
    "Ancillary does not mean you get to rule the world." --U.S. Circuit Judge Harry Edwards, speaking to the FCC's lawyer
  174. Re:Credit Card inflation. by iamblades · · Score: 1

    nah, ununium is much much cooler... atomic number 111 oh yeah baby....

    More on topic, I want a machined titanium full tower case.... Hahahahaha, I laugh at you and your wimpy plastic cases. And it would be lighter than the sheet metal case sitting on my desk right now....

    --
    Shit adds up at the bottom...
  175. Oops, didn't think of that. by WickedDyno · · Score: 1

    Hmm. I would assume that the calcium oxide would form at the electrode, and precipitate out of the molten CaCl, to form either a scum on the electrode or particulate matter. The former wouldn't be a problem since the other electrode would be the one accumulating the Ti. The latter presumably could be strained or filtered out. Anyway, calcium cloride is about as cheap as table salt. ;)

  176. Re:Uses of titanium - We can rebuild him..... by soulsteal · · Score: 2

    It also holds together Steve Austin, the Six Million Dollar Man. Where would the entertainment industry be without the advent of the Bionic Man and his accompanying sound effects?

    I shudder to think...

  177. Re:That's all fine but... by grammar+nazi · · Score: 1
    I'm not exactly sure why my above post got moderated as a troll. Come on, even a troll couldn't come up with stuff that sounded so good. I assure you that it's all true.

    Normally mis-moderations don't bother me, but in this case it affects the credibility of what I am saying...
    ...there I'm done whining now.

    --

    Keeping /. free of grammatical errors for ~5 years.