Thermodynamic assessment of the Eu–Sn system

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• 作者：Liu ; Lihui ; Li ; Changrong ; Wang ; Fuming ; Du ; Zhenmin ; Zhang ; Weijing
• 关键词：Eu&ndash ; Sn system ; Phase diagram ; Thermodynamic properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2004
• 出版时间：October 6, 2004
• 年：2004
• 卷：379
• 期：1-2
• 页码：148-153
• 全文大小：129 K

文摘

The phase equilibria, the thermodynamic data and the phase diagram of the Eu–Sn (europium–tin) system have been critically assessed by means of CALculation of PHAse Diagram (CALPHAD) technique. The solution phases (liquid and bcc) are modeled with the Redlich–Kister equation, and the intermetallic compounds (Eu₂Sn, Eu₅Sn₃, EuSn, Eu₃Sn₅ and EuSn₃) are treated as stoichiometric compounds. The terminal bct and diamond phases are considered as phases of pure element Sn since the very small solubility of Eu in Sn. A set of self-consistent thermodynamic parameters of the Eu–Sn system was obtained. The calculations agree well with the respective experimental data.