Phase Equilibria in the System ZrO2─InO1.5

Kazunari Sasaki, Petr Bohac, Ludwig J. Gauckler

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Phase equilibria in the system ZrO2─InO1.5 have been investigated in the temperature range from 800° to 1700°C Up to 4 mol%, InO1.5 is soluble in t‐ZrO2 at 1500°C. The martensitic transformation temperature m→t of ZrO2 containing InO1.5 is compared with that of ZrO2 solid solutions with various other trivalent ions with different ionic radii. The diffusionless c→t′ A phase transformation is discussed. Extended solid solubility from 12.4 ± 0.8 to 56.5 ± 3 mol% InO1.5 is found at 1700°C in the cubic ZrO2 phase. The eutectoid composition and temperature for the decomposition of c‐ZrO2 solid solution into t‐ZrO2+InO1.5 solid solutions were determined. A maximum of about 1 mol% ZrO2 is soluble in bcc InO1.5 phase. Metastable supersaturation of ZrO2 in bcc InO 1.5 and conditions for phase separation are discussed.

元の言語英語
ページ(範囲)689-698
ページ数10
ジャーナルJournal of the American Ceramic Society
76
発行部数3
DOI
出版物ステータス出版済み - 1 1 1993
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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