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Thermodynamic calculation of Ms in ZrO2–CeO2–Y2O3 system
- Source :
-
Journal of the European Ceramic Society . May2003, Vol. 23 Issue 5, p685. 6p. - Publication Year :
- 2003
-
Abstract
- The difference of Gibbs free energy between tetragonal and monoclinic phases in ZrO2–CeO2–Y2O3 as a function of composition and temperature is thermodynamically calculated from the three related binary systems. In 8 mol% CeO2–0.5 mol% Y2O3–ZrO2, the equilibrium temperature between tetragonal and monoclinic phases, T0, is obtained as 832.5 K and the Ms temperature of this alloy with a mean grain size of 0.90 μm is calculated as 249.9 K using the approach derived by Hsu et al. [J. Mater. Sci., 18(1983)3206; 20(1985)23; Acta Metall., 37(1989)3091; Acta Metall. Mater., 39(1991)1045; Mater. Trans. JIM, 37(1996)1284], which is in good agreement with the experimental one of 253 K. [Copyright &y& Elsevier]
- Subjects :
- *GIBBS' free energy
*BINARY metallic systems
*ALLOYS
Subjects
Details
- Language :
- English
- ISSN :
- 09552219
- Volume :
- 23
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of the European Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 8793475
- Full Text :
- https://doi.org/10.1016/S0955-2219(02)00192-9