Field induced acoustic emission (AE) in ferroelectric ceramics

Author

Uchino, Kenji ; Aburatani, Hideaki

Author_Institution

Intercoll. Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA

Volume

1

fYear

1998

fDate

1998

Firstpage

775

Abstract

Electric field induced acoustic emission (AE) in ferroelectric PZT ceramics has been studied. It was shown that the field induced AE originated from where the displacement was induced and ended when the applied field was being reduced during poling. A larger electric field than the previously applied maximum field was required for new AE generation (Kaiser effect). From the AE event rate and the AE signal amplitude distribution, it was assumed that there were two origins of the bipolar field induced AE in the ferroelectric ceramics: deformation related to domain reorientation and piezoelectric deformation without domain reorientation

Keywords

acoustic emission; acoustoelectric effects; dielectric polarisation; electric domains; ferroelectric ceramics; garnets; lead compounds; Kaiser effect; PZT; PbZrO3TiO3; acoustic emission event rate; acoustic emission signal amplitude distribution; applied field; bipolar field induced acoustic emission; displacement; domain reorientation; electric field induced acoustic emission; ferroelectric PZT ceramics; piezoelectric deformation; poling; Acoustic emission; Actuators; Ceramics; Ferroelectric materials; Laboratories; Noise measurement; Power supplies; Titanium compounds; Vibration measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE

Conference_Location

Sendai

ISSN

1051-0117

Print_ISBN

0-7803-4095-7

Type

conf

DOI

10.1109/ULTSYM.1998.762262

Filename

762262