Damage characteristics of lead zirconate titanate piezoelectric ceramic during cyclic loading

Mitsuhiro Okayasu, Nozomi Odagiri, Mamoru Mizuno

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The effects of the damage characteristics on the material properties of a piezoelectric ceramic are examined during cyclic loading. The material being examined is a lead zirconate titanate piezoelectric ceramic (PZT). The electrical properties, such as the electromechanical coupling coefficient (k33), are changed during cyclic loading. The k33 coefficient decreases rapidly to a low level as the sample is loaded cyclically with a high applied stress, while the k33 value decreases slowly or does not change when loaded with a low applied stress. Such a change of material degradation is influenced by the severity of the material damage in the PZT ceramic. The material damage in the PZT occurs, and this occurrence is related to a lightning-like phenomenon (a bright flash with a click). Details of the damage characteristics in PZT ceramic are discussed in the present work.

Original languageEnglish
Pages (from-to)1434-1441
Number of pages8
JournalInternational Journal of Fatigue
Volume31
Issue number8-9
DOIs
Publication statusPublished - Aug 1 2009

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Keywords

  • Domain switching
  • Electrical property
  • Fatigue test
  • Material damage
  • PZT ceramic

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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