Phase equilibria study in systems Tl-Pb(Nd)-Bi-Te new phases of variable composition on the base of Tl9BiTe6

被引：14
|
作者：
Babanly, M. B. [1 ]
Tedenac, J. -C. [2 ]
Imamalieva, S. Z. [1 ]
Guseynov, F. N. [1 ]
Dashdieva, G. B. [1 ]
机构：
[1] Baku State Univ, AZ-1148 Baku, Azerbaijan
[2] Univ Montpellier 2, Inst Charles Gerhardt, CNRS, UMR 5253, F-34095 Montpellier 5, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 491卷 / 1-2期
关键词：
Phase equilibria; Thermodynamics; Tellurides; Phase diagram; CRYSTAL-STRUCTURE; PBTE-TL2TE; TL5TE3;
D O I：
10.1016/j.jallcom.2009.08.157
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：
By DTA, X-ray diffraction, EMF methods and microhardness measurements, the phase equilibria on the concentration sections Tl5Te3-Tl4PbTe3-Tl9BiTe6 (I), Tl2Te-Tl4PbTe3-Tl9BiTe6 (II), Tl5Te3-Tl9NdTe6Tl9BiTe6 (III) and Tl2Te-Tl9NdTe6-Tl9BiTe6 (IV) of the multinary systems TI-Pb(Nd)-Bi-Te were investigated. A number of isopleth sections, projections of liquidus and solidus surfaces of the systems (I)-(IV) were constructed. The concentration dependences of crystal lattice parameters, microhardness and of partial thermodynamic functions of thallium (Delta(G) over bar, Delta(H) over bar, Delta(S) over bar) in alloys were determined. The investigated systems are characterized by formation of continuous (I, III) or wide (II, IV) areas of solid solutions based on Tl5Te3 compound. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：230 / 236
页数：7
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