New EMF measurements and thermodynamic evaluation of the In-Pb-Zn system

被引:4
|
作者
Vassiliev, V. P. [1 ]
Lysenko, V. A. [1 ]
Gong, Weiping [2 ]
机构
[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia
[2] Huizhou Univ, Dept Elect Sci, Huizhou 516001, Peoples R China
基金
俄罗斯基础研究基金会;
关键词
In-Pb-Zn ternary alloy system; Phase diagrams; Liquid phase immiscibility; EMF; Thermodynamic modeling; LEAD-ZINC SYSTEM; MISCIBILITY GAP; LIQUID; SN;
D O I
10.1016/j.jallcom.2013.02.142
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Seven alloys of the In-Pb-Zn ternary system were studied in the range of 660-791 K by the method of electromotive forces (EMFs), using the electrochemical cell: (-) Zn| ZnCl2 + KCl + LiCl| In-Pb-Zn (+). Temperature dependencies of EMF (E(T) = a + b .T) were obtained for three phase regions: (I) homogeneous liquid, (II) heterogeneous liquid 1 + liquid 2 and (III) heterogeneous liquid 3 + solid mixtures. Based on these equations the values of chemical potential of zinc as well as phase transition temperatures were found. On the basis of the obtained and literature data, thermodynamic model of ternary liquid was proposed. The liquidus surface projection and vertical sections In0.5Pb0.5-Zn, In0.5Zn0.5-Pb, Pb0.5Zn0.5-In of the system In- Pb-Zn were calculated. (C) 2013 Published by Elsevier B.V.
引用
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页码:49 / 54
页数:6
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