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The phase equilibria in the Ag2S-Ag8GeS 6-Ag8SnS6 system
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[1] Aliyeva, Z.M.
[2] Bagheri, S.M.
[3] 2,Aliev, Z.S.
[4] Alverdiyev, I.J.
[5] Yusibov, Y.A.
[6] 2,Babanly, M.B.
来源：
Aliev, Z.S. (ziyasaliev@gmail.com)
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1600年
/
Elsevier Ltd卷
/
611期
关键词：
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;
ΔS¯) 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;
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