Destruction mechanism and destruction detection technique for multilayer ceramic actuators

Author

Aburatani, Hideaki ; Uchino, Kenji ; Furutaand, Atushi ; Fuda, Yoshiaki

Author_Institution

IMRL, Pennsylvania State Univ., University Park, PA, USA

fYear

1991

fDate

33457

Firstpage

750

Lastpage

752

Abstract

The destruction process of piezoelectric actuators under bipolar driving was studied using acoustic emission (AE) monitoring and induced-displacement measurement. The effect of floating electrode over the internal electrode´s end was also investigated. Floating electrodes can suppress the field concentration and cracking in the actuator

Keywords

acoustic emission testing; displacement measurement; electrical faults; electrodes; failure analysis; lead compounds; piezoceramics; piezoelectric actuators; Pb(NiNb)O₃-PZT; PbNiNbO3-PbZrO3TiO3; acoustic emission monitoring; bipolar driving; cracking; destruction detection technique; destruction mechanism; field concentration; floating electrode; induced-displacement measurement; internal electrode; multilayer ceramic actuators; piezoelectric actuators; poling; Acoustic emission; Acoustic measurements; Acoustic sensors; Ceramics; Delamination; Electrodes; Monitoring; Nonhomogeneous media; Piezoelectric actuators; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on

Conference_Location

University Park, PA

Print_ISBN

0-7803-1847-1

Type

conf

DOI

10.1109/ISAF.1994.522478

Filename

522478