Modeling the Phase Diagram of the Tl9SmTe6-Tl4PbTe3-Tl9BiTe6 System

Imamaliyeva, S. Z.; Alekberzade, G. I.; Mamedov, A. I.; Тагиев, Д. Б.; Бабанлы, М. Б.

doi:10.1007/978-3-030-64058-3_60

Cited by 2 publications

(1 citation statement)

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“…For the development of directed methods for the synthesis of new materials, it is very useful to understand the phase relationships in the corresponding systems [27][28][29]. Systems characterized by the formation of solid solutions are of particular interest because the properties of the material can be changed by varying the composition [30][31][32][33]. The constructed phase diagrams of such systems serve as the basis for choosing the composition of melts for growing single crystals of solid solutions of a given composition by the method of directed crystallization.…”

Section: Introductionmentioning

confidence: 99%

PHASE RELATIONS IN THE Ag8SiS6–Ag8SiTe6 SYSTEM AND CHARACTERIZATION OF SOLID SOLUTIONS

Amiraslanova¹,

Babanly²,

Imamaliyeva³

et al. 2023

AChJ

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Argyrodite family compounds and phases based on them are valuable ecologically friendly functional materials that exhibit a number of functional propreties, such as thermoelectric, photoelectric, optical, and other. On the other hand, having Cu+ and Ag+ ion conductivity, they are ionic conductors, and can be used as electrochemical sensors, electrodes, or electrolyte materials in solid-state batteries, displays, etc. In the present paper, phase relations in the Ag8SiS6–Ag8SiTe6 system were studied by differential thermal analysis and X-ray diffraction phase techniques and a T-x phase diagram was constructed. It is established that the system is quasi-binary and is characterized by the formation of a continuous series of substitutional solid solutions between Ag8SiTe6 and HT- Ag8SiS6 compounds. With the formation of solid solutions, the temperature of the polymorphic transition of the Ag8SiS6 decreases. This leads to the stabilization of the ion-conducting cubic phase in the range of compositions 30 mol. % Ag8SiTe6 at room temperature and below. The homogeneity regions based on RT-Ag8SiS6 are 10 mol. %. According to XRD data, the crystal lattice parameters of the obtained solid solutions were calculated and a their linear dependence on the composition is shown

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