Critical evaluation and thermodynamic optimization of the U-Pb and U-Sb binary systems

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• 作者：Jian Wang^a ; ^b ; Liling Jin^b ; Chuchu Chen^c ; Weifeng Rao^a ; ^{wfraonuist@163.com" class="auth_mail" title="E-mail the corresponding author} ; Cuiping Wang^d ; Xingjun Liu^d
• 关键词：Phase diagram ; Nuclear materials ; CALPHAD method ; U-base alloys
• 刊名：Journal of Nuclear Materials
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：480
• 期：Complete
• 页码：216-222
• 全文大小：965 K

文摘

A complete literature review, critical evaluation and thermodynamic optimization of the phase diagrams and thermodynamic properties of U-Pb and U-Sb binary systems are presented. The CALculation of PHAse Diagrams (CALPHAD) method was used for the thermodynamic optimization, the results of which can reproduce all available reliable experimental phase equilibria and thermodynamic data. The modified quasi-chemical model in the pair approximation (MQMPA) was used for modeling the liquid solution. The Gibbs energies of all terminal solid solutions and intermetallic compounds were described by the compound energy formalism (CEF) model. All reliable experimental data of the U-Pb and U-Sb systems have been reproduced. A self-consistent thermodynamic database has been constructed for these binary systems; this database can be used in liquid-metal fuel reactor (LMFR) research.