Modeling the phase diagram of the Tl9TbTe6–Tl4PbTe3–Tl9BiTe6 system

İMAMƏLİYEVA S., Alakbarzade G., Mamedov A., Babanlı M.

Azerbaijan Chemical Journal, vol.2021, no.2, pp.6-12, 2021 (Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 2021 Say: 2
  • Nəşr tarixi: 2021
  • Doi nömrəsi: 10.32737/0005-2531-2021-2-6-12
  • jurnalın adı: Azerbaijan Chemical Journal
  • Jurnalın baxıldığı indekslər: Scopus
  • Səhifə sayı: pp.6-12
  • Açar sözlər: 3D modelling, Multipurpose Genetic Algorithm, Phase diagram, Solid solution, Thallium-bismuth tellu-rides, Thallium-lead tellurides, Thallium-terbium tellurides
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

The analytical multi 3D model of phase diagram of the Tl9TbTe6–Tl4PbTe3–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 thermody-namic 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.