Akademik Məlumat İdarəetmə Sistemi
Russian Journal of Inorganic Chemistry, vol.57, no.1, pp.100-103, 2012 (SCI-Expanded, Scopus)
The Pb-Bi-Se system in the PbSe-Bi2Se3-Se-Se composition region was studied by measure- ment of concentration circuits of the type (-) PbSe(solid) liquid electrolyte, Pb2+(Pb-Bi-Se)(solid) (+) in the temperature range 300-430 K and by X-ray powder diffraction. A solid-phase equilibrium diagram was constructed, and the formation was confirmed for the ternary compounds Pb5Bi6Se14, Pb5Bi12Se 23, and Pb5Bi18Se32, which belong to the homologous series [(PbSe)5]m · [(Bi2Se 3)3]n. From the emf versus tempera- ture equations, the partial thermodynamic functions ΔḠ ΔH̄ ΔS̄ of PbSe in alloys were calculated. Based on the solid-phase equilibrium diagram from these partial molar quantities using the corresponding data for PbSe and Bi 2Se3, the standard thermodynamic functions of formation and standard entropies of the above ternary compounds were calculated. © Pleiades Publishing, Ltd., 2012.