Crystallization and Properties of a Si‐Y‐Al‐O‐N Glass‐Ceramic

Jean‐Louis ‐L Besson, Dominique Billieres, Tanguy Rouxel, Paul Goursat, Robert Flynn, Stuart Hampshire

Research output: Contribution to journalArticlepeer-review

Abstract

Glasses have been prepared in the Si ‐Y‐Al O‐N system by melting mixtures of silica, alumina, yttria, and silicon nitride. One particular glass containing 17 equiv% N has been investigated to Observe the crystallization at temperatures in the range 1050o‐1300oC. The major crystalline phase observed is Y2Si2O7, existing as the α form below 1200oC and the β form above this temperature. Properties of the glass‐ceramic, including thermal expansion coefficient, hardness, electrical resistivity, and creep have been assessed.

Original languageEnglish
Pages (from-to)2103-2105
Number of pages3
JournalJournal of the American Ceramic Society
Volume76
Issue number8
DOIs
Publication statusPublished - Aug 1993

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