Thermodynamic properties of liquid copper-lanthanum alloys

被引：3

作者：

Sudavtsova, V. S. ^{[1
]}

Shevchenko, M. A. ^{[1
]}

Ivanov, M. I. ^{[1
]}

Berezutskii, V. V. ^{[1
]}

Kudin, V. G. ^{[1
]}

机构：

[1] NAS Ukraine, Frantsevich Inst Problems Mat Sci, Kiev, Ukraine

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2017年 / 91卷 / 06期

关键词：

copper; lanthanum; calorimetry; thermodynamic modeling; enthalpies; activities; phase diagram; CU-LA ALLOYS; SYSTEM; PHASES; METALS;

D O I：

10.1134/S0036024417060231

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：

Mixing enthalpies of alloys in the Cu-La system are measured using isoperibolic calorimetry method over the ranges 0 < x (La) < 0.185 at 1400-1430 K and 0.659 < x (La) < 1 at 1370 K. They have moderate exothermic values over the whole concentration range and agree with literature data. Activities of the components, enthalpies and entropies of formation of intermetallics in this system, and its phase diagram are optimized using an ideal associated solution (IAS) model, and agree with most literature data. The updated thermodynamic properties can be used in further investigation of multicomponent systems based on the binary Cu-La.

引用

页码：990 / 997

页数：8

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