Electric Fatigue in Lead Zirconate Titanate Ceramics

Qiyue Jiang, Wenwu Cao, L. Eric Cross

Research output: Contribution to journalArticlepeer-review

159 Scopus citations

Abstract

Electric fatigue is a major obstacle for some potential applications of ferroelectric materials based on reversals of spontaneous polarization, such as memory devices and high strain actuators. Our studies of finegrained hotpressed lead zirconate titanate with lanthanum dopant (PLZT 7/68/32) show that fast fatigue is actually caused by contaminated surfaces instead of intrinsic structure deterioration or the change of domain states. All of the specimens with conventionally cleaned surfaces showed significant fatigue after 105 switching cycles, but specimens cleaned with a new cleaning procedure did not fatigue even after more than 108 switching cycles. This type of fatigue is found to be due to generated microcracking at the ceramic–electrode interface.

Original languageEnglish (US)
Pages (from-to)211-215
Number of pages5
JournalJournal of the American Ceramic Society
Volume77
Issue number1
DOIs
StatePublished - Jan 1994

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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