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Effects of Bias Electric Fields on the Non‐linear Ferroelastic Behavior of Soft Lead Zirconate Titanate Piezoceramics
Author(s) -
Zhou Dayu,
Kamlah Marc,
Munz Dietrich
Publication year - 2005
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.1551-2916.2005.00139.x
Subject(s) - lead zirconate titanate , piezoelectricity , materials science , dielectric , zirconate , electric field , work (physics) , ferroelectricity , compression (physics) , deformation (meteorology) , transducer , titanate , composite material , acoustics , ceramic , optoelectronics , physics , thermodynamics , quantum mechanics
Modern piezoelectric transducers normally have complicated structures and work under severe loading conditions. Due to their inherent domain‐switching processes, the real response of piezoceramics under large‐signal loading is dominated by a significantly non‐linear behavior that is to be considered in reliability assessment and devices design. This paper presents systematic measurements of the non‐linear depolarization and strain behavior of soft lead zirconate titanate piezoceramics over a wide range of compression loads and bias electric fields. An attempt has been made to explain the experimental findings by simultaneously taking into account the contributions of dielectric response, elastic deformation, irreversible domain switching, and piezoeffects.