Stability of Tetragonal ZrO2 Particles in Ceramic Matrices

A. H. HEUER, N. CLAUSSEN, W. M. KRIVEN, M. RUHLE

Research output: Contribution to journalArticlepeer-review

Abstract

The stability of tetragonal ZrO2 particles in ceramic matrices was considered, with particular reference to Al2O3‐ZrO2 composites and to partially stabilized ZrO2. In both systems, particles above a “critical” size transform martensitically to monoclinic symmetry on cooling to room temperature. The critical factors that could affect the size dependence of the transformation temperature—surface and strain energy effects, the chemical free energy driving force, and the difficulty of nucleating the martensitic transformation—were considered. Nucleation arguments are probably the most important.

Original languageEnglish (US)
Pages (from-to)642-650
Number of pages9
JournalJournal of the American Ceramic Society
Volume65
Issue number12
DOIs
StatePublished - Dec 1982
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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