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A large number of transducers, ultrasonic motors or actuators are based on lead zirconate titanate (PZT) piezoceramics, with compositions near the morphotropic phase boundary (MPB) where the relevant material properties approach their maximum. Since the best piezoelectric properties, in particular the highest recoverable strains, are observed for these MPB compositions with phase coexistences, a separate...
The important piezoelectric material, lead zirconate titanate perovskite PbZr 0.52 Ti 0.48 O 3 (PZT) was investigated as a function of pressure and temperature by Raman spectroscopy. At ambient pressure, the transition between the low-temperature and high-temperature ferroelectric monoclinic phases occurs near 210 K and is followed by transformation...
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