Effects of 90° domain switching on electric generation properties of PZT ceramic

Mitsuhiro Okayasu, Toshiki Yamasaki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The influence of domain switching on the electric generation properties of lead zirconate tinatate (PZT) ceramic has been investigated after static and cyclic loadings under various conditions. A PZT ceramic of size ϕ8.0 mm×0.17 mm, consisting of a tetragonal lattice structure, i.e., c/a≠1.014, was used. Domain switching occurred as a result of the applied stress, where three different switching modes were employed: (I) simple 90° switching; (II) 90° switching with 90° rotation; and (III) 90° switching with 180° rotation. The rates of the switching mode were different: the simple switching mode (Mode I) was 20%; and both complicated switching modes (Mode II and III) were 40%. The extent of 90° domain switching was different depending on the grain and where the direction of the tetragonal structure (c-axis direction) was affected, e.g., the closer the parallel between the c-axis and the stress direction, the stronger the domain switching. The electric generation voltage increased with increasing applied cyclic stress; however, that voltage dropped suddenly as the stress value was close to its elastic limit. This is due to the 90° domain switching. Such domain switching (reduction of the electric voltage) occurred in the early cyclic stage.

Original languageEnglish
Pages (from-to)3590-3600
Number of pages11
JournalCeramics International
Volume43
Issue number4
DOIs
Publication statusPublished - Mar 1 2017

Keywords

  • 90° domain switching
  • Electric generation voltage
  • Lead zirconate titanate ceramic
  • Piezoelectric effect
  • Piezoelectric property

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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