Abstract
Structural features of the CuCrS2 and AgCrS2 systems and phase relations in their alloys within the composition range x = 0 to 1 and the temperature range from 20 to 500 °C are investigated. The studies of the monovalent ionic disordering character as a temperature function show that their complete disordering takes place at the phase transition point. In the disordered phases unlimited solid solubility of CuCrS2 in AgCrS2 is found. The values of ionic and electron conductivities are measured for all compositions and the value of the ionic conductivity activation energy changes abruptly at the phase transition point. Self-diffusion coefficients and the values of correlation factors are measured by the radioactive isotope method. The chemical diffusion coefficients and the ionic and electron transport numbers are calculated from the build-up and decay curves of the concentration polarization. Using the phenomenological theory of diffusion and the experimental data, the values of thermodynamic parameters are determined. [Russian Text Ignored].
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