Mechanically controlled domain structure in PZT piezoelectric ceramics

Mitsuhiro Okayasu, Yuki Sato, Mamoru Mizuno, Tetsuro Shiraishi

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7 Citations (Scopus)

Abstract

The influence of the mechanically applied load on the piezoelectric properties and domain switching characteristics has been investigated experimentally using a soft lead zirconate titanate (PZT) piezoceramic, which de-poled to make randomly orientated domain structures. Mechanical loads were applied to rectangular PZT ceramics under compressive and tensile stresses. With the applied stress, 90°domain switching occurred in many locations in the PZT ceramics, where the higher stress caused more severe domain switching. The domain switching occurred with different directions, depending on the stress direction. For instance, the (2 0 0) peak increased and the (0 0 2) peak decreased when more severe compressive stress was applied. The opposite trend was detected as more severe tensile stress was applied; the (2 0 0) peak decreased and the (0 0 2) peak increased. With the applied loading process, the domains (long tetragonal c-axis) were orientated regularly in the PZT ceramics. Furthermore, like the electrically poled PZT ceramics, the domain orientations were more aligned when the sample surfaces were constrained during the loading process.

Original languageEnglish
Pages (from-to)4579-4585
Number of pages7
JournalCeramics International
Volume38
Issue number6
DOIs
Publication statusPublished - Aug 2012
Externally publishedYes

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Keywords

  • C. Piezoelectric properties
  • D. PZT ceramic
  • Domain orientation
  • Domain switching
  • XRD analysis

ASJC Scopus subject areas

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

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