Enthalpies of formation in the Al-Ni-Ru system by direct reaction synthesis calorimetry

被引：24

作者：

Su, HN ^{[1
]}

Nash, P ^{[1
]}

机构：

[1] IIT, Thermal Proc Technol Ctr, Chicago, IL 60616 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 403卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

enthalpy; heat of formation; Al-Ni-Ru; miscibility gap; B2_phase; calorimeter; Wagner-Schottky; Miedema; thermocalc; Calphad; defect;

D O I：

10.1016/j.jallcom.2005.05.032

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：

The enthalpies of formation of ternary compounds in the Al-Ni-Ru system have been determined by high temperature reaction calorimetry. The composition dependence of the enthalpy of formation and lattice parameter of the compounds with B2 structure were determined in the region of 0.40 <= Al <= 0.5 mole fraction. Unusual behavior is observed for the composition dependence of the enthalpy of formation suggesting that formation of a miscibility gap in the B2 phase field occurs. For some compositions, the experimental enthalpy data therefore represent the formation enthalpy of the metastable B2 phase. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：217 / 222

页数：6

共 20 条

[1]

Bakker H, 1998, MAT SCI FDN

[2] THE CONSTITUTION OF THE NI-AL-RU SYSTEM [J].