Thermodynamic Calculation of the Zirconia–Calcia System
作者:
Yong Du,
Zhanpeng Jin,
Peiyun Huang,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 11
页码: 3040-3048
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb04384.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
An optimal thermodynamic data set for the zirconia–calcia system is evaluated by the CALPHAD (CALculation of PHAse Diagrams) method applied to experimental phase diagram and thermodynamic data. The liquid andCss(cubic ZrO2solid solution) are described by a subregular solution model. Three compounds, CaZr4O9, Ca6Zr19O44, and CaZrO3, are modeled as stoichiometric compounds. A regular solution model is applied to the other phases. Comparisons between calculated and measured phase diagrams and thermodynamic quantities show that most of experimental information is satisfactorily accounted for by thermodynamic calculations. The calculations also reasonably predict the measured electromotive force concerning the metastableCs
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