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Acoustic Characterization of Poling Effects in PZT Ceramics
Author(s) -
Jen ChengKuei,
Chung ChulJong,
Shapiro Galina,
Monchalin JeanPierre,
LANGLOIS PIERRE,
Bussiere Jean F.
Publication year - 1987
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.1151-2916.1987.tb04892.x
Subject(s) - poling , materials science , lead zirconate titanate , attenuation , ceramic , composite material , piezoelectricity , sintering , hot pressing , pressing , ferroelectricity , dielectric , optics , optoelectronics , physics
Acoustic velocity and attenuation were measured in poled and unpoled lead zirconate titanate (PZT) ceramics prepared by sintering and hot‐pressing under‐different conditions. Hot‐pressed PZT was found to have attenuation values approximately 1 order of magnitude smaller than simered PZT. For both materials, poling caused a decrease in attenuation. Depolarization and phase transition phenomena were also observed at elevated temperatures using a novel laser‐ultrasound technique in combination with conventional pulse‐echo measurements.