Thermodynamic modeling of the Pd-Sb system

被引：3
|
作者：
Han, Wei [1 ]
Li, Mei [1 ]
机构：
[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 507卷 / 02期
关键词：
Pd-Sb phase diagram; Thermodynamic modeling; CALPHAD technique; REGULAR SOLUTION MODEL; CRYSTAL-STRUCTURE; ALLOYS; PHASES; PALLADIUM; ELEMENTS; GASB; NI;
D O I：
10.1016/j.jallcom.2010.07.220
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 Pd-Sb binary system has been thermodynamically assessed by means of CALPHAD approach. The Redlich-Kister polynomial was used to describe the solution phases, liquid (L) and fcc. The non-stoichiometric compound Pd3Sb and Pd5Sb3 were described by a two-sublattice model (Pd,Sb)(3)Sb and (Pd,Sb)(5)(Pd,Sb)(3). The six intermetallic compounds, Pd8Sb3, Pd20Sb7, Pd5Sb2, Pd2Sb, PdSb and PdSb2, were treated as stoichiometric phases. The parameters of the Gibbs energy expressions were optimized according to all the available experimental information of both the equilibrium data and the thermodynamic results. A set of self-consistent thermodynamic parameters of the Pd-Sb system has been obtained. The calculations agree well with the respective experimental data. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：521 / 525
页数：5
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