不同温度下Ag-Al-Au-Cu液态合金热力学和表面性能的理论评价

IF 2.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
D. K. Sah, U. Mehta, R. K. Gohivar, D. Adhikari, S. K. Yadav
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引用次数: 0

摘要

在1573 ~ 1873 K温度范围内,采用不同的几何模型对Ag-Al-Au-Cu液态合金的热力学和表面性能进行了计算和分析。利用混合焓和混合过量熵的实验数据,在Redlich-Kister多项式框架下对Ag-Al-Au-Cu二元子系统的能量相互作用参数进行了优化。计算了Ag-Al-Au-Cu体系的二元和三元子系统的热力学和表面性质,探讨了它们对四元配合物形成的影响。采用通解模型、Kohler模型和Toop模型在不同截面处计算了四元体系混合的过量吉布斯自由能。这些计算值是一致的。单体的计算活性进一步验证了体系的混合倾向。采用Butler模型计算了体系的表面性质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Theoretical assessment of thermodynamic and surface properties of Ag–Al–Au–Cu liquid alloy at different temperatures

Theoretical assessment of thermodynamic and surface properties of Ag–Al–Au–Cu liquid alloy at different temperatures

Thermodynamic and surface properties of Ag–Al–Au–Cu liquid alloy were computed and analysed in the temperature range 1573–1873 K using different geometrical models. The energy interaction parameters of constituent binary subsystems of Ag–Al–Au–Cu were optimised in the framework of the Redlich–Kister polynomial using experimental data of enthalpy of mixing and excess entropy of mixing. The thermodynamic and surface properties of binary and ternary subsystems of the Ag–Al–Au–Cu system were also calculated to explore their effects in quaternary complex formation. The excess Gibbs free energy of mixing of the quaternary system was computed using General Solution Model, Kohler model, and Toop model at different cross-sections. These values calculated were found to be consistent with each other. The mixing tendency of the system was further validated by the computing activities of its monomers. The surface properties of the systems were computed using Butler model.

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来源期刊
Applied Physics A
Applied Physics A 工程技术-材料科学:综合
CiteScore
4.80
自引率
7.40%
发文量
964
审稿时长
38 days
期刊介绍: Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.
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