The phase equilibria in the Ag2S-Ag8GeS 6-Ag8SnS6 system

Aliyeva Z., Bagheri S., Aliev Z., Alverdiyev I., Yusibov Y., Babanlı M.

Journal of Alloys and Compounds, vol.611, pp.395-400, 2014 (SCI-Expanded, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 611
  • Nəşr tarixi: 2014
  • Doi nömrəsi: 10.1016/j.jallcom.2014.05.112
  • jurnalın adı: Journal of Alloys and Compounds
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Səhifə sayı: pp.395-400
  • Açar sözlər: Phase diagram, Silver-germanium (tin) sulfide, Solid solutions, Thermodynamic functions
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

The phase equilibria in the Ag2S-Ag8GeS 6-Ag8SnS6 system were investigated experimentally by means of differential thermal analysis (DTA), X-ray diffraction (XRD) techniques, scanning electron microscopy (SEM) and electromotive force (EMF) measurements of the concentration chains with Ag 4RbI5 solid electrolyte. The phase diagram of the boundary Ag8GeS6-Ag8SnS6 system, two isopleth sections as well as liquidus surface projection of the Ag 2S-Ag8GeS6-Ag8SnS6 system was plotted. The continuous solid solution series between low and high temperature modifications of both initial compounds were found along the boundary Ag8GeS6-Ag8SnS6 system. It was found that the Ag2S-Ag8GeS6-Ag 8SnS6 system is quasi-ternary plane of the quaternary system and relates to monovariant eutectic type. The partial molar thermodynamic functions (ΔG,ΔH,ΔS̄) of silver were calculated for the LTM-Ag8Ge1-xSnxS6 (for x = 0.2; 0.4; 0.6; 0.8) solid solution based on the results of the EMF measurements. © 2014 Elsevier B.V. All rights reserved.