Thermodynamic properties of solid solutions in the system Ag₂S-Ag₂Se

详细信息    查看全文

• 作者：G.A. Pal鈥檡anova ; K.V. Chudnenko ; T.V. Zhuravkova
• 关键词：Ag2S&ndash ; Ag2Se system ; Silver sulfoselenides ; Solid solutions ; Thermodynamic properties
• 刊名：Thermochimica Acta
• 出版年：10 January, 2014
• 年：2014
• 卷：575
• 期：Complete
• 页码：90-96
• 全文大小：1116 K

文摘

We have summarized experimental data on the phase diagram of the system Ag₂S-Ag₂Se. Standard thermodynamic functions of four solid solutions in this system have been calculated using the model of regular and subregular solutions: a restricted fcc solid solution 纬-Ag₂S-Ag₂S_1鈭?em>xSe_x (x < 0.3, 867 < T < 1110 K) and complete bcc solid solution series along 尾-Ag₂S-Ag₂Se, monoclinic solid solution (伪) from Ag₂S to Ag₂S_0.4Se_0.6, and orthorhombic solid solution (伪) from Ag₂S_0.3Se_0.7 to the Ag₂Se. G^mix and S^mix have been evaluated using the subregular model for asymmetric solution for the region Ag₂S_0.4Se_0.6-Ag₂S_0.3Se_0.7. The thermodynamic data can be used for modeling in complex natural systems and in matters of semiconductor materials.