MODELING THE PHASE DIAGRAMS OF THE Tl9SmTe6–Tl4PbTe3 AND Tl9SmTe6–Tl9BiTe6 SYSTEMS

Imamaliyeva, S. Z.; Alakbarzade, G.I.; Mamedov, A. I.; Бабанлы, М. Б.

doi:10.32737/0005-2531-2020-4-12-16

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…Understanding the phase relationships in the respective systems is always useful for developing directed methods for the synthesis of new materials [20][21][22]. Systems characterized by the formation of solid solutions are of particular interest since the material properties can be changed by varying the composition [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Ag8GeS6(Se6)–Ag8GeTe6 SYSTEMS: PHASE RELATIONS, SYNTHESIS, AND CHARACTERIZATION OF SOLID SOLUTIONS

Amiraslanova¹,

Mammadova²,

Alverdiyev³

et al. 2023

AChJ

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Phase equilibria in the Ag8GeS6-Ag8GeTe6 and Ag8GeSe6-Ag8GeTe6 systems were studied using differential thermal analysis and powder X-ray diffraction technique. The T-x phase diagrams were constructed. It has been found that both systems are partially quasi-binary and are characterized by the formation of continuous series of substitutional solid solutions between Ag8GeTe6 and high-temperature cubic modifications of Ag8GeS6 and Ag8GeSe6. When solid solutions are formed, the temperatures of polymorphic phase transitions of these compounds decrease. This leads to the stabilization of the ion-conducting cubic phase in the 40 mol% Ag8GeTe6 range of compositions at room temperature and below. The regions of homogeneity based on Ag8GeS6 and Ag8GeSe6 are 15 and 10 mol.%, respectively. The crystal lattice parameters of the identified solid solutions were calculated from the XRD data, and their linear dependence on the composition is shown

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Section: Introductionmentioning

confidence: 99%

Ag8GeS6(Se6)–Ag8GeTe6 SYSTEMS: PHASE RELATIONS, SYNTHESIS, AND CHARACTERIZATION OF SOLID SOLUTIONS

Amiraslanova¹,

Mammadova²,

Alverdiyev³

et al. 2023

AChJ

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“…To optimize the functional properties of known compounds, it is expedient to obtain solid solutions based on them. From this point of view, of interest are systems that include compoundsstructural or formula analogs [32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

SURFACES OF CRYSTALLIZATION AND PHASE RELATIONS IN THE 6Ag2Se+Ag8SiTe66Ag2Te+Ag8SiSe6 RECIPROCAL SYSTEM

Amiraslanova,

Babanly,

Imamaliyeva

et al. 2023

AChJ

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The paper presents the results of a study of phase equilibria in the 6Ag2Se+Ag8SiTe6 6Ag2Te+Ag8SiSe6 reciprocal system by DTA and XRD methods. The projection of the liquidus surface, isothermal sections at 300, 500, 1150 K, and some polythermal sections of the phase diagram are constructed. It is shown that the system is reversible-reciprocal. It is characterized by the formation of continuous high-temperature solid solutions along the Ag8SiSe6-Ag8SiTe6 () and Ag2Se-Ag2Te () boundary systems. It has been established that the liquidus surface of the reciprocal system consists of two fields of primary crystallization - and -phases. These surfaces are delimited by a eutectic curve with monovariant equilibrium L+. In the subsolidus part of the system, a complex interaction is observed associated with the polymorphism of the initial compounds and phases based on them

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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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MODELING THE PHASE DIAGRAMS OF THE Tl9SmTe6–Tl4PbTe3 AND Tl9SmTe6–Tl9BiTe6 SYSTEMS

Cited by 3 publications

References 24 publications

Ag8GeS6(Se6)–Ag8GeTe6 SYSTEMS: PHASE RELATIONS, SYNTHESIS, AND CHARACTERIZATION OF SOLID SOLUTIONS

Ag8GeS6(Se6)–Ag8GeTe6 SYSTEMS: PHASE RELATIONS, SYNTHESIS, AND CHARACTERIZATION OF SOLID SOLUTIONS

SURFACES OF CRYSTALLIZATION AND PHASE RELATIONS IN THE 6Ag2Se+Ag8SiTe66Ag2Te+Ag8SiSe6 RECIPROCAL SYSTEM

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

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