A thermodynamic description of the Al-Mo-Si system

被引：20

作者：

Guo, Cuiping ^{[1
,2
]}

Li, Changrong ^{[1
]}

Masset, Patrick J. ^{[2
,3
]}

Du, Zhenmin ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Freiberg Univ Min & Technol, Ctr Innovat Competence Virtuhcon, D-09596 Freiberg, Germany

[3] ATZ Entwicklungszentrum, D-92237 Sulzbach Rosenberg, Germany

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2012年 / 36卷

基金：

中国国家自然科学基金;

关键词：

Al-Mo-Si system; Silicides; Thermodynamic properties; CALPHAD technique; REGULAR SOLUTION MODEL; ALUMINUM-MOLYBDENUM; PHASE-EQUILIBRIA; TERNARY-SYSTEM; BINARY-SYSTEMS; MOSI2; STABILITY; OPTIMIZATION; C40;

D O I：

10.1016/j.calphad.2011.12.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermodynamic reassessment of the Al-Mo-Si system was performed using the CALPHAD technique. The solution phases (liquid, bcc, fcc and diamond) were modeled as a substitutional solution. The compounds AlMo3 in the Al-Mo system and Mo3Si in the Mo-Si system had the same A15 crystal structure, and were treated as one phase and described by a two-sublattice model (Al, Mo, Si)(Al, Mo)(3). The compound Mo5Si3 with D8(m) crystal structure was treated as the formula Mo-0.5 (Mo, Si)(0.125)(Al, Mo, Si)(0.375) in the Al-Mo-Si system. Other compounds, Al63Mo37, Al8Mo3, Al3Mo, Al4Mo, Al17Mo4, Al22Mo5, Al12Mo and Al5Mo in the Al-Mo system, MoSi2 in the Mo-Si system, and ternary compounds C40 and C54 were treated line compounds (Al, Si)mMo(n) in the Al-Mo-Si system. Based on the published experimental isothermal sections and the liquidus surface projection, the Al-Mo-Si system was re-optimized, and a set of self-consistent thermodynamic parameters was obtained. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：100 / 109

页数：10

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