Thermodynamic assessment of the Ru-Zr binary system

被引：4
作者：
Idbenali, M.
Servant, C.
Selhaoui, N.
Bouirden, L.
机构：
[1] Univ Ibn Zohr, Lab Thermodynam Met & Rheol Mat, Agadir, Morocco
[2] Univ Paris 11, Lab Physicochim Etat Solide, ICMMO, F-91405 Orsay, France
来源：
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2007年 / 28卷 / 03期
关键词：
calphad method; phase diagram; Ru-Zr system; thermodynamic assessment;
D O I：
10.1007/s11669-007-9084-z
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 Ru-Zr system has been assessed by means of the Calphad approach. The solution phases (Liquid, (Ru), (alpha Zr) and (beta Zr)) were modeled with the sublattice formalism and the excess term of the Gibbs energy with the Redlich-Kister equation. The intermetallic compounds Ru2Zr and RuZr, which have homogeneity ranges, were treated as the formula (Ru,Zr)(0.667)(Ru,Zr)(0.333) and (Ru,Zr)(0.5)(Ru,Zr)(0.5) by a two-sublattice model with a mutual substitution of Ru and Zr on both sublattices. The calculated phase diagram and the thermodynamic properties of the system are in satisfactory agreement with the experimental data.
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收藏
页码：243 / 249
页数：7
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