Thermodynamic modeling of the germanium-manganese system

被引：21

作者：

Berche, A. ^{[1
]}

Tedenac, J. C. ^{[1
]}

Jund, P. ^{[1
]}

机构：

[1] ICGM Univ Montpellier 2, UMR CNRS 5253, F-34095 Montpellier, France

来源：

INTERMETALLICS | 2014年 / 47卷

关键词：

Silicides; Phase diagrams; Thermodynamic and thermochemical properties; Phase diagram; prediction; Thermoelectric power generation; PHASE-EQUILIBRIA; CRYSTAL-STRUCTURE; ALLOYS;

D O I：

10.1016/j.intermet.2013.12.009

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：

Based on a careful review of the literature, the Ge-Mn system is modeled using the Calphad method. The liquid is described using an associate model regarding to physicochemical observation's. The phases cub_a13, fcc_a1 and bcc_a2 are modeled as substitution solutions using the Redlich-Kister formalism. The Mn11Ge8, Mn5Ge3, LT_Mn5Ge2 and LT_Mn3Ge are treated as stoichiometric compounds and the non-stoichiometry of Mn3Ge, Mn5Ge2 and Mn2Ge are respectively described as (Mn)(0.75)(Ge,Mn)(0.25), (Ge,Mn)(0.714) (Ge,Mn)(0.286) and (Ge,Mn)(0.667) (Ge,Mn)(0.333). The results are in good agreement with the set of experimental data which is carefully selected. Finally, a few experimental data which could be checked are indicated. (C) 2013 Elsevier Ltd. All rights reserved..

引用

页码：23 / 30

页数：8

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