Critical evaluation and thermodynamic optimization of the CaO-ZrO₂ and SiO₂-ZrO₂ systems

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• 作者：Sun Yong Kwon ; In-Ho Jung ; ^{in-ho.jung@mcgill.ca" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Thermodynamic modeling ; CaO-ZrO2 ; SiO2-ZrO2 ; Phase diagram ; Gibbs energy
• 刊名：Journal of the European Ceramic Society
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：37
• 期：3
• 页码：1105-1116
• 全文大小：2834 K

文摘

Thermodynamic optimizations of unary ZrO₂, binary CaO-ZrO₂ and SiO₂-ZrO₂ systems were carried out based on the critical evaluation of all available thermodynamic properties and phase diagram data in literature. Liquid phase was described by using the Modified Quasichemical Model considering the short range ordering, and solid solutions were described considering their defect structures. The discrepancies among experimental phase diagram data and possible errors in the existing thermodynamic data were identified and the most reliable thermodynamic descriptions of the systems were obtained.