Effect of phase separation on ferroelastic domain switching in 3 mol%Y2O3-ZrO2

Takanori Kiguchi, Atsushi Saiki, Kazuo Shinozaki, Kiyoshi Terayama, Nobuyasu Mizutani

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effect of phase separation on ferroelastic domain switching in 3 mol%Y2O3-ZrO2 pseudo-single crystals annealed at 1700°C was examined. Domain switching occurred in two steps. From TEM analysis, the first step seemed to be the switching of t′-phase, and the second to be that of t-phase. The effect of phase separation is as follows. First by, the switching amount of t′-phase decreased with decrease of the volume fraction, whereas that of t-phase increased with increase of the one. Secondly, the critical stress of t′- and t-phase increased with growth of t-phase colony. This is because that the clamping force among these phases for domain switching increase. Especially the critical stress of t-phase was strongly effected by the colony size of t-phase.

Original languageEnglish
Pages (from-to)1136-1140
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume105
Issue number12
DOIs
Publication statusPublished - 1997 Dec
Externally publishedYes

Keywords

  • Colony
  • Critical stress
  • Domain
  • Ferroelastic domain switching
  • Phase separation
  • Tetragonal zirconia
  • t-phase
  • t′-phase

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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