Microstructural design of Ca α-sialon ceramics: Effects of starting compositions and processing conditions

Y. Zhang, Y. B. Cheng

Research output: Contribution to journalArticlepeer-review

Abstract

The microstructural development of Ca α-sialon ceramics has been studied. It was found that the microstructure of these materials could be controlled by the starting compositions and the processing conditions. Consequently, the observed microstructure has been related to the mechanical properties of these materials. It was found that although fracture toughness increased with increasing grain size and aspect ratio, a weakened interface between the α-sialon grains and intergranular glass is essential to further improve the toughness of these materials.

Original languageEnglish (US)
Pages (from-to)1531-1541
Number of pages11
JournalJournal of the European Ceramic Society
Volume23
Issue number9
DOIs
StatePublished - Aug 2003

Keywords

  • Hot pressing
  • Mechanical properties
  • Microstructure-final
  • Pressureless sintering
  • Sialons

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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