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- Title
Tl<sub>2</sub>Te-Tl<sub>9</sub>BiTe<sub>6</sub>-Tl<sub>8</sub>GeTe<sub>5</sub> SYSTEM.
- Authors
Alakbarova, T. M.; Jafarov, Y. I.; Mustafayeva, A. L.; Babanly, M. B.
- Abstract
Phase equilibria in the quaternary system Tl-Ge-Bi-Te in the composition area Tl2Te-Tl9BiTe6- Tl8GeTe5 were investigated by using differential thermal analysis (DTA) and powder X-ray diffraction (XRD) technique. Some isopleth sections and isothermal sections at 300, 740 and 800 K, as well as projections of liquidus and solidus surfaces were constructed. It found that homogeneity area of solid solutions with Tl5Te3 structure (δ-phase) occupied more than 80% of the concentration triangle. A narrow area of solid solutions (α-phase) based on Tl2Te were detected along boundary system Tl2Te-Tl9BiTe6.
- Subjects
THALLIUM compounds; GERMANIUM telluride; PHASE equilibrium; CRYSTAL structure; DIFFERENTIAL thermal analysis
- Publication
Chemical Problems / Kimya Problemləri, 2017, Vol 15, Issue 4, p355
- ISSN
2221-8688
- Publication type
Article
- DOI
10.32737/2221-8688-2017-4-355-363