The driving force for α⇄β transformation in rare earth α sialon ceramics

Hasan Mandal*, Derek P. Thompson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In-situ α⇄β sialon transformation in rare earth sialon systems, which occurs when dense α- and α/β-sialon samples are heat-treated at temperatures in the range 1300-1600°C was first observed five years ago, and has generated a considerable level of research activity aimed at defining the reason(s) why the transformation occurs. A mass of experimental data is now available, and many factors have been identified which influence the reaction. However, the exact reason for the transformation is still not entirely clear, and in the present paper, various explanations which have been suggested during the last five years are discussed and the current position evaluated.

Original languageEnglish
Pages (from-to)798-801
Number of pages4
JournalKey Engineering Materials
Issue number136 PART 2
Publication statusPublished - 1997
Externally publishedYes

Keywords

  • Rare earth α-sialons
  • Sialons
  • α⇄β transformation

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