Acoustic emission and piezoactivity during poling in PZT-like ferroelectric ceramics
- 1 October 1981
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 37 (1) , 563-566
- https://doi.org/10.1080/00150198108223486
Abstract
Acoustic Emission (AE) induced by poling field was observed in the PZT-like ferroelectric ceramics at the room temperature. Relationships between AE characteristics and electromechanical coupling coefficients as the measure of poling show that domains in grains have the various levels of charactersitic threshold field to reverse their polarization directions or to move domain walls. Reversals of domain states with higher threshold field levels occur large amplitude acoustic emissions.Keywords
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