Thermodynamic calculation of phase equilibria of the U-Ga and U-W systems

Thermodynamic calculation of phase equilibria of the U-Ga and U-W systems
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U-Ga和U-W体系相平衡的热力学计算

DOI:
10.1016/j.jnucmat.2008.07.009
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发表时间:
2008-10
影响因子:
3.1
通讯作者:
刘兴军
刘兴军
中科院分区:
工程技术2区
文献类型:
--
作者:
王见;王翠萍;刘兴军

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本文用相图计算法(calculation of phase diagrams,CALPHAD)对U-Ga和U-W体系进行了热力学计算,计算了U-Ga和U-W体系的热力学性质和相平衡。溶液相的吉布斯自由能用Redlich-Kister方程描述,金属间化合物的吉布斯自由能用亚晶格模型描述。导出了U-Ga和U-W二元系各相吉布斯自由能的热力学参数。计算的U-Ga和U-W系相图和热力学性质与实验数据符合得很好。
The thermodynamic assessments of the U–Ga and U–W systems have been carried out by using the CALPHAD (calculation of phase diagrams) method using experimental data including thermodynamic properties and phase equilibria. Gibbs free energies of the solution phases were described by the subregular solution models with the Redlich–Kister equation, and those of the intermetallic compounds were described by the sublattice models. A consistent set of thermodynamic parameters has been derived for the Gibbs free energy of each phase in the U–Ga and U–W binary systems, respectively. The calculated phase diagrams and thermodynamic properties in the U–Ga and U–W systems are in good agreement with experimental data.
DOI: 10.1016/s0925-8388(98)00097-8
发表时间: 1998-06
影响因子: 6.2
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