Thermodynamic Calculation and 3D Modeling of the Phase Diagram PbTe-Sb2Te3-Bi2Te3 System

Mammadov A., Ibragimova F., Aghazade A., Tagiev D., Babanlı M.

16th International Conference on Application of Fuzzy Systems, Soft Computing and Artificial Intelligence Tools, ICAFS 2023, Antalya, Turkey, 14 - 15 September 2023, vol.1142 LNNS, pp.372-378, (Full Text) identifier

  • Nəşrin Növü: Conference Paper / Full Text
  • Cild: 1142 LNNS
  • Doi nömrəsi: 10.1007/978-3-031-72506-7_49
  • Çap olunduğu şəhər: Antalya
  • Ölkə: Turkey
  • Səhifə sayı: pp.372-378
  • Açar sözlər: multi 3D modeling, Multipurpose Genetic Algorithm, PbTe-Sb2Te3-Bi2Te3 system, phase diagram, thermodynamics
  • Açıq Arxiv Kolleksiyası: Konfrans Materialı
  • Adres: Bəli

Qısa məlumat

By optimizing the thermodynamic equations of heterogeneous equilibria with the Multipurpose Genetic Algorithm (MGA) the analytical model of crystallization surfaces of of PbTe, Sb2Te3, Bi2Te3 compounds and ternary phases PbBi2Te4, PbBi4Te7, PbBi6Te10 in the PbTe-Sbi2Te3-Bi2Te3 system is determined. To assess the deviation from the ideal model a limited powder XRD, DTA, and SEM results are used. As initial thermodynamic date we used enthalpy, entropy, and free energy of formation of the lead (II) telluride, antimony (III) telluride, bismuth (III) telluride and PbBi2Te4, PbBi4Te7, PbBi6Te10 compounds. Applying the subregular model of solutions of heterovalent compounds to lead (II), bismuth (III) and antimony (III) tellurides, the temperature-concentration dependences of the integral molar energy of Gibbs formation of three-component alloys are determined. Analytical three-dimensional model of liquidus surfaces of the PbTe-Sb2Te3-Bi2Te3 system visualized using the computer program Origin Lab.