Abstract
Phase equilibria in the reciprocal system 3Tl2S + Bi2Te3 ↔ 3Tl2Te + Bi2S3 (A) have been studied by differential thermal analysis, X-ray diffraction, microhardness tests, and emf measurements using thallium concentration cells, and a number of vertical sections, the 300-K isothermal section of its phase diagram, and the liquidus projection have been mapped out. The system is shown to be reversibly reciprocal, with broad solid solution regions in the Tl2S-Tl2Te-Tl9BiTe6 subsystem and along the TlBiS2-TlBiTe2 join. We have determined the homogeneity ranges and primary crystallization fields of the phases and identified the nature and coordinates of invariant equilibria in system A.
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Original Russian Text © Ya.I. Jafarov, S.Z. Imamalieva, V.P. Zlomanov, M.B. Babanly, 2014, published in Neorganicheskie Materialy, 2014, Vol. 50, No. 6, pp. 597–604.
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Jafarov, Y.I., Imamalieva, S.Z., Zlomanov, V.P. et al. Phase equilibria in the reciprocal system 3Tl2S + Bi2Te3 ↔ 3Tl2Te + Bi2S3 . Inorg Mater 50, 551–558 (2014). https://doi.org/10.1134/S0020168514060065
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DOI: https://doi.org/10.1134/S0020168514060065