FTFA, The researchers have found a replacement for Lead zirconate titanate not LEAD. PZT is a piezoelectric material that contains lead and is used to make actuators and transducers in microelectronics industry. The article itself is pretty poor describing piezoelectric materials as a "switch", so perhaps it is not the fault of the readers for thinking this was a replacement for lead based solders.
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FTFA, The researchers have found a replacement for Lead zirconate titanate not LEAD. PZT is a piezoelectric material that contains lead and is used to make actuators and transducers in microelectronics industry. The article itself is pretty poor describing piezoelectric materials as a "switch", so perhaps it is not the fault of the readers for thinking this was a replacement for lead based solders.