Paper Title:
Electric Loading-Induced Cracking Behavior at Electrode Edges in PZT Ceramics
  Abstract

Fatigue damage behavior under repeated electric loading was investigated on two kinds of PZT ceramics with discontinuous electrodes. Intergranular cracking was observed at the electrode edge in soft PZT under electric fields greater than ±400 V/mm. However, under the same loading conditions, no damage was observed in hard PZT. When cracking occurred, permittivity of specimens decreased with the number of cycles corresponding to the amount of mechanical damage. FEM analyses of the electroelastic field of the specimens showed that cracking due to cyclic electric loading was related to 180˚ domain switching caused by concentrated electroelastic field.

  Info
Periodical
Edited by
Katsutoshi Komeya, Yohtaro Matsuo and Takashi Goto
Pages
267-270
DOI
10.4028/www.scientific.net/KEM.352.267
Citation
K. Kusukawa, Y. Shiozaki, "Electric Loading-Induced Cracking Behavior at Electrode Edges in PZT Ceramics", Key Engineering Materials, Vol. 352, pp. 267-270, 2007
Online since
August 2007
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Price
$32.00
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