FORMATION OF FLUORITE-RELATED PHASES BY RAPID QUENCHING OF Gd//3TaO//7.

Masahiro Yoshimura, Yoshiyuki Yokogawa, Shigeyuki Somiya

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A disorder phase with a cubic pyrochlore lattice (space group Fd3m) was obtained by rapid quenching of a Gd//3TaO//7 (3 Gd//2O//3 multiplied by (times) Ta//2O//5) melt. A fluorite-related phase with orthorhombic weberite lattice (C 222//1) was formed both by firing at 1350 degree C for 96 h or at 1700 degree C for 4 h, and by melting of the 3 Gd//2O//3 plus Ta//2O//5 mixture. Annealing at 1350 degree C for 96 h or at 1700 degree C for 4 h of the rapidly quenched pyrochlore also produced the weberite phase. Order-disorder transition may occur above 1700 degree C in this compound.

Original languageEnglish
Pages (from-to)593-595
Number of pages3
JournalYogyo Kyokai Shi/Journal of the Ceramic Society of Japan
Volume93
Issue number9
Publication statusPublished - 1985 Dec 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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