Akademik Məlumat İdarəetmə Sistemi
Azerbaijan Chemical Journal, vol.2023, no.1, pp.22-29, 2023 (Scopus)
Phase equilibria in the Ag8 GeS6-Ag8GeTe6 and Ag8GeSe6-Ag8GeTe6 systems were studied using differ-ential thermal analysis and powder X-ray diffraction technique. The T-x phase diagrams were construct-ed. It has been found that both systems are partially quasi-binary and are characterized by the formation of continuous series of substitutional solid solutions between Ag8GeTe6 and high-temperature cubic modifications of Ag8 GeS6 and Ag8 GeSe640 mol% Ag³. When solid solutions are formed, the temperatures of polymorphic phase transitions of these compounds decrease. This leads to the stabilization of the ion-conducting cubic phase in the8GeTe6 range of compositions at room temperature and be-low. The regions of homogeneity based on Ag8GeS6 and Ag8GeSe6 are 15 and 10 mol.%, respectively. The crystal lattice parameters of the identified solid solutions were calculated from the XRD data, and their linear dependence on the composition is shown.