Phase diagram of the Sb-Se-I system and thermodynamic properties of SbSeI

Aliev Z., Musaeva S., Babanly D., Shevelkov A., Babanlı M.

Journal of Alloys and Compounds, vol.505, no.2, pp.450-455, 2010 (SCI-Expanded, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 505 Say: 2
  • Nəşr tarixi: 2010
  • Doi nömrəsi: 10.1016/j.jallcom.2010.06.103
  • jurnalın adı: Journal of Alloys and Compounds
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Səhifə sayı: pp.450-455
  • Açar sözlər: Antimony, Electro-motive force, Phase diagram, Phase equilibria, Thermodynamics
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

The Sb-Se-I system was investigated by using the DTA and XRD analyses and EMF measurements with an antimony electrode. The T-x diagram of the binary Sb-I system was accurately redefined. A number of polythermal sections and the projection of the liquidus surface were constructed. The fields of the primary crystallization, as well as the types and coordinates of non- and monovariant equilibria were determined. It is shown that the quasi-binary sections Sb 2Se3-SbI3, Sb-SbSeI, SbI3-Se, and SbSeI-Se triangulate the Sb-Se-I system, leading to five independent subsystems. A broad area of immiscibility, that overlaps a certain part of the antimony primary crystallization field, was found. From the EMF measurements, the partial molar functions of antimony (ΔḠ,ΔH̄,ΔS̄) as well as standard integral thermodynamic functions of SbSeI were calculated. The latter were found to have the following values: ΔGf,2980=-80.121.81kJ/mol; ΔHf,2980=-77.31.8kJ/mol; S2980=155.29.5J/(molK). © 2010 Elsevier B.V.All rights reserved.