The work presents the results of studies of the 2PbTe–AgSbTe₂ system using the EMF technique with the Ag₄RbI₅ solid electrolyte in the temperature range of 300–430 K. Formation of a wide (0–80 mol% AgSbTe₂) region of PbTe-based solid solutions in the system is shown. Partial thermodynamic functions of alloyed silver are calculated on the basis of the equations of the temperature dependences of EMF. Potential-forming reactions are determined on the basis of the data on solid-phase equilibriums in the Ag₂Te–PbTe–Sb₂Te₃–Te system that are used to calculate standard thermodynamic functions of formation and standard entropies of (2PbTe)_x(AgSbTe₂)_{1 – x} (x = 0.2; 0.4; 0.6; 08; 0.9) solid solutions.

"Thermodynamic Study of the 2PbTe–AgSbTe₂ System Using EMF Technique with the Ag4RbI₅ Solid Electrolyte" L. F. Mashadieva, Sh. G. Mansimova, Yu. A. Yusibov, and M. B. Babanly. Russian Journal of Electrochemistry, 2018, Vol. 54, No. 1, pp. 106–111.