Thermodynamic assessments of the Sc–M (M: Ag, B and Th) systems
Thermodynamic assessments of the Sc–M (M: Ag, B and Th) systems
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DOI：
10.1016/j.jallcom.2008.02.018
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发表时间：
2009-02
影响因子：
6.2
通讯作者：
X. J. Liu;San-yuan Wang;C. P. Wang
中科院分区：
文献类型：
--
作者：
X. J. Liu;San-yuan Wang;C. P. Wang
根据热力学性质和相平衡等实验数据，使用 CALPHAD（相图计算）方法评估了 Sc-M（M：Ag、B 和 Th）二元体系中的相图和热力学性质。液相、bcc、fcc和hcp相的吉布斯自由能由Redlich-Kister方程的次正则溶液模型描述，这三个二元体系中金属间化合物(Ag4Sc、Ag2Sc、AgSc、ScB2和ScB12)的吉布斯自由能由亚晶格模型描述。获得了Sc-M（M：Ag、B和Th）二元体系的热力学参数，并且每个二元体系中的计算结果与实验数据一致。
The phase diagrams and thermodynamic properties in the Sc–M (M: Ag, B and Th) binary systems have been assessed by using the CALPHAD (Calculation of Phase Diagrams) method on the basis of the experimental data including the thermodynamic properties and phase equilibria. The Gibbs free energies of the liquid, bcc, fcc, and hcp phases were described by the subregular solution model with the Redlich–Kister equation, and those of the intermetallic compounds (Ag4Sc, Ag2Sc, AgSc, ScB2and ScB12) in these three binary systems were described by the sublattice model. The thermodynamic parameters of the Sc–M (M: Ag, B and Th) binary systems were obtained, and an agreement between the calculated results and experimental data was obtained in each binary system.