Experimental determination of phase equilibrium in the Fe-Co-Sb ternary system

被引：9

作者：

Amornpitoksuk, Pongsaton

Li, Hongxiao

Tedenac, Jean-Claude

Fries, Suzana G.

Ravot, Didier

机构：

[1] Univ Montpellier 2, CNRS, Lab Physicochim Mat Condensee, UMR 5617, F-34095 Montpellier 5, France

[2] Rhein Westfal TH Aachen, ACCESS eV, D-52072 Aachen, Germany

来源：

INTERMETALLICS | 2007年 / 15卷 / 04期

关键词：

ternary alloy systems; phase diagrams; phase transformations;

D O I：

10.1016/j.intermet.2006.07.004

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：

Phase stability and phase transformation were studied in the Fe-Co-Sb ternary system for the three sections: CoSb-Fe0.56Sb0.44, 30 at.% of Sb and 75 at.% of Sb. In the first section, we find a continuous solid solution without any secondary phase. The unit cell volume increases as a function of X-Fe/(X-Fe + X-Co). At 30 at.% of Sb, the B8 and the bcc-A(2) phases are obtained across the whole Fe-Co section. On the CoSb3 side (75 at.% of Sb), Fe atoms cannot completely substitute for Co atoms in the skutterudite structure. Below 5 at.% of substitution of Fe for Co in CoSb3, only the D0(2) phase is present while for high concentration of Fe, marcasite and Sb phases coexist. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：475 / 478

页数：4

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