Study of the Uncertainty Heterogeneous Phase Equilibria Areas in the Binary YbTe-SnTe Alloy System

Mammadov, A.N.; Aliev, Ziya S.; Бабанлы, М. Б.

doi:10.1007/978-3-030-04164-9_107

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…For the analytical description of the liquidus and solidus of the Tl 9 TbTe 6 (1)-2Tl 4 PbTe 3 (2) and Tl 9 TbTe 6 (1)-Tl 9 BiTe 6 (3) systems, the positions of fuzzy systems for heterogeneous equilibria were used [42][43][44]. Due to the monotonic temperature dependence of the liquidus and solidus on the composition for the Tl 9 TbTe 6 (1)-2Tl 4 PbTe 3 (2) and Tl 9 TbTe 6 (1)-Tl 9 BiTe 6 (3) systems, the following equations are used:…”

Section: Objects and Equations For Modelingmentioning

confidence: 99%

“…In ( 5) the first term represents the enthalpy of mixing of solid solutions in an asymmetric version of the model of regular solutions. For solid solutions with unlimited solubility, the mixing parameter is a<0, b>0 the second term represents the configurational entropy of mixing solid solutions according to the model of nonmolecular compounds [43]; p and q are represent the number of different atoms in compounds. R=8.314 J mol -1 K -1 .…”

Section: ) T(solidus)=a+bx+(d±∆)x(1-x)mentioning

confidence: 99%

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MODELING THE PHASE DIAGRAM OF THE Tl9TbTe6–Tl4PbTe3–Tl9BiTe6 SYSTEM

Imamaliyeva¹,

Alakbarzade²,

Mamedov³

et al. 2021

AChJ

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The analytical multi 3D model of phase diagram of the Tl9TbTe6–Tl8Pb2Te6–Tl9BiTe6 system was obtained as temperature dependence on the composition using the Multipurpose Genetic Algorithm (MGA). It was determined that the system is characterized by the formation of continuous solid solutions with tetragonal Tl5Te3-type structure (δ-phase). The boundaries of the uncertainty band for the liquidus and solidus surfaces of the δ-phase and the TlTbTe2 compound are determined. The thermodynamic functions of mixing of the solid solutions depending on the composition and temperature are determined based on the model of regular solutions of non-molecular compounds. It was established that the δ-phase possess thermodynamic stability in the entire concentration interval

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Section: Objects and Equations For Modelingmentioning

confidence: 99%

Section: ) T(solidus)=a+bx+(d±∆)x(1-x)mentioning

confidence: 99%

MODELING THE PHASE DIAGRAM OF THE Tl9TbTe6–Tl4PbTe3–Tl9BiTe6 SYSTEM

Imamaliyeva¹,

Alakbarzade²,

Mamedov³

et al. 2021

AChJ

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“…For the analytical description of the liquidus and solidus of the Tl 9 SmTe 6 (1)-2Tl 4 PbTe 3 (2), Tl 9 SmTe 6 (1)-Tl 9 BiTe 6 (3) systems, the uncertainty principle for heterogeneous equilibria were used in [30][31][32]. Due to the monotonic dependence of the temperature of liquidus and solidus on the composition for the Tl 9 SmTe 6 (1)-2Tl 4 PbTe 3 (2) and Tl 9 SmTe 6 (1)-Tl 9 BiTe 6 (3) systems, the following equations were used:…”

Section: Objects and Equations For Modelingmentioning

confidence: 99%

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

Imamaliyeva¹,

Alakbarzade²,

Mamedov³

et al. 2020

AChJ

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Using the multipurpose genetic algorithm, the analytical models of phase diagrams of the Tl9SmTe6–Tl8Pb2Te6 and Tl9SmTe6–Tl9BiTe6 systems as temperature dependencies of compositions of the equilibrium phases were obtained. The boundaries of the uncertainty band for the liquidus and solidus curves of solid solutions are determined. According to the model of regular solutions of non-molecular compounds, the thermodynamic functions of mixing solid solutions depending on the composition and temperature are determined. It was found that solid solutions based on the Tl9SmTe6, Tl8Pb2Te6 and Tl9BiTe6 compounds are thermodynamically stabile in the whole concentration range

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“…In binary side systems Ag-Se and Sn-Se of the ternary system Ag-Sn-Se, there are wide areas of homogeneity that propagate inside the concentration (Figure 2) triangle. For the calculation and approximation of the free energy of mixing liquid solutions, an asymmetric version of the model of regular solutions, successfully tested in [35][36][37][38], was used:…”

Section: Thermodynamicsmentioning

confidence: 99%

Ag–Sn–Se SYSTEM: PHASE DIAGRAM, THERMODYNAMICS AND MODELING

Ibrahimova¹

2019

AChJ

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A comparative analysis of works on the study of phase equilibria, structures and thermodynamic properties of intermediate phases of the Ag-Sn-Se ternary system has been carried out. It was shown that two ternary compounds Ag 8 SnSe 6 and AgSnSe 2 are formed in the system, melting congruently at 1015 K and incongruently at 860 K, respectively. The most reliable data for enthalpy, entropy, free formation energy, and heat capacities of AgSnSe 2 and the argirodit phase of Ag 8 SnSe 6 are recommended. Thermodynamic functions of mixing liquid solutions are approximated by an asymmetric version of the model of regular solutions. To determine the boundaries of the separation of liquid alloys, the function of the internal thermodynamic stability of the homogeneous phase was used. With the help of the program OriginLab, multi 3D visualization of Ag 2 Se, SnSe 2 , SnSe, Ag 8 SnSe 6 crystallization surfaces and immiscibility surfaces in the Ag Sn Se system was carried out.

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Study of the Uncertainty Heterogeneous Phase Equilibria Areas in the Binary YbTe-SnTe Alloy System

Cited by 6 publications

References 13 publications

MODELING THE PHASE DIAGRAM OF THE Tl9TbTe6–Tl4PbTe3–Tl9BiTe6 SYSTEM

MODELING THE PHASE DIAGRAM OF THE Tl9TbTe6–Tl4PbTe3–Tl9BiTe6 SYSTEM

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

Ag–Sn–Se SYSTEM: PHASE DIAGRAM, THERMODYNAMICS AND MODELING

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