Abstract Although Ag–Au alloys are vital for many industries and technological applications, thermodynamic properties data of Ag–Au solid solution are very limited, especially at low temperatures. In the present investigation, activities of silver were directly measured between 550 and 700 K by a solid electromotive force (EMF) method and AgI as the pure ionic conducting electrolyte resembled in a galvanic cell notation as - C A g A g I A l l o y C ( + ) . From the silver activity data and by employing Gibbs–Duhem integration, partial thermodynamic properties of silver and gold were calculated. Integral thermodynamic properties such as Gibbs energy of mixing, mixing enthalpy and entropy of silver and gold to form the alloys have been determined. Thermodynamic properties were also expressed by analytical equations of the partial excess properties as a function of temperature and composition, providing a user-friendly tool to generate other thermodynamic properties to be used for many purposes.

中文翻译：

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固态电解质 EMF 法测量 Ag-Au 合金的热力学性能

摘要 尽管 Ag-Au 合金对许多行业和技术应用至关重要，但 Ag-Au 固溶体的热力学性能数据非常有限，尤其是在低温下。在本研究中，银的活性通过固体电动势 (EMF) 方法在 550 到 700 K 之间直接测量，而 AgI 作为纯离子导电电解质类似于原电池符号，如 - CA g A g IA lloy C ( + )。根据银的活性数据并通过使用 Gibbs-Duhem 积分，计算了银和金的部分热力学性质。积分热力学性质，如吉布斯混合能、混合焓和银和金形成合金的熵已被确定。