Enthalpies of mixing of Al-Ni-La ternary alloys

被引：1

作者：

Kotova, N. V. ^{[1
]}

Usenko, N. I. ^{[1
]}

Romanova, L. A. ^{[2
]}

Sudavtsova, V. S. ^{[2
]}

机构：

[1] Taras Shevchenko Natl Univ, UA-01601 Kiev, Ukraine

[2] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, UA-03680 Kiev, Ukraine

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 87卷 / 09期

关键词：

aluminum; nickel; lanthanum; enthalpies of mixing; high-temperature calorimetry; geometrical models; THERMODYNAMIC PROPERTIES; TIN; GE;

D O I：

10.1134/S0036024413090100

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：

Partial (for nickel) and integral enthalpies of mixing of liquid alloys of the Al-Ni-La ternary system of three radial sections with a constant ratio of molar fractions of aluminum and lanthanum x (Al)/x (La) = 0.3/0.7 at 1770 +/- 5 K and 0.5/0.5 and 0.8/0.2 at 1870 +/- 5 K up to molar fractions of nickel in ternary alloys of approximately 0.5-0.6 are studied by means of high-temperature calorimetry in isoperibolic mode. It is found that the enthalpies of mixing of the melts are essentially exothermic values. Based on the energetics of alloy formation of this ternary system, it is concluded that the main contribution is made by interaction between the components of melts of the boundary Ni-Al binary system.

引用

页码：1452 / 1456

页数：5

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