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Ultra‐High Strain Ceramics with Multiple Field‐Induced Phase Transitions
Author(s) -
Brodeur Russell P.,
Gachigi Kamau,
Pruna Philip M.,
Shrout Thomas R.
Publication year - 1994
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1994.tb04546.x
Subject(s) - materials science , antiferroelectricity , polarization (electrochemistry) , electric field , ceramic , phase transition , zirconate , condensed matter physics , strain (injury) , composite material , ferroelectricity , dielectric , titanate , chemistry , optoelectronics , physics , medicine , quantum mechanics
The induced polarization and longitudinal strain behavior of lanthanum‐ and titanium‐modified antiferroelectric lead zirconate ceramics were measured as functions of electric field as high as 30 kV/mrn (300 kV/cm). Two field‐induced phase transitions were observed, both in polarization and strain. Polarization and strain levels greater than 0.5 C/m 2 and 0.75%, respectively, were achieved in this materials family.