Thermodynamic assessment of the Cu-Pt system
Thermodynamic assessment of the Cu-Pt system
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DOI：
10.1361/105497196x92736
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发表时间：
2006-02-01
影响因子：
1.4
通讯作者：
Onodera, H
中科院分区：
文献类型：
--
作者：
Abe, T;Sundman, B;Onodera, H
对铜-铂系统进行了CALPHAD评估。采用2个和4个子晶格模型描述有序相的Gibbs自由能，其中通过倒易参数显式考虑了SRO的贡献。无序的面心立方A1和液相被视为替代溶液。得到了一组一致的参数，这些参数可以令人满意地再现实验的相平衡和热力学性质，如热、铜的活度和长程有序参数。
A CALPHAD assessment of the Cu-Pt system has been carried out. Two and four sublattice models were applied to describe the Gibbs free energies of ordered phases where the contribution of SRO is taken explicitly into account through the reciprocal parameters. The disordered fcc A1 and liquid phases were treated as substitutional solutions. A consistent set of parameters for the phases in the Cu-Pt system as obtained, and those parameters can satisfactorily reproduce the experimental phase equilibria and thermodynamic properties, such as enthalpies, activity of Cu, and long-range order parameters.