Phase Equilibria in the Tl2S-Tl2Te-Tl9BiTe6-TlBiS2 system

被引:0
|
作者
Ya. I. Jafarov
N. A. Rzaeva
M. B. Babanly
机构
[1] Baku State University,
来源
Inorganic Materials | 2008年 / 44卷
关键词
Thermoelectric Material; Silica Ampule; Eutectic Phase Diagram; Quaternary Solid Solution; Morphotropic Phase Transition;
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摘要
The phase equilibria in the Tl2S-Tl2Te-Tl9BiTe6-TlBiS2 system have been studied by differential thermal analysis and x-ray diffraction. The results have been used to construct the T-x phase diagram along the Tl2S-Tl9BiTe6 ([TlBi0.333S0.5Te0.5]) and TlBiS2-Tl2Te(Tl9BiTe6) joins, the 500-K section of the phase diagram of the Tl2S-Tl2Te-Tl9BiTe6-TlBiS2 system, and its liquidus diagram. The invariant and univariant phase equilibria involved have been identified. The system has been shown to contain wide regions of Tl2Te-and Tl9BiTe6-based quaternary solid solutions.
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