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.

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In this report, the purpose and status of the currently constructed ITEP experimental accelerator driven system (XADS) are discussed. This hybrid electro-nuclear facility of moderate power integrates the pulse proton linac (36 MeV, 0.5 mA) and heavy water sub-critical blanket assembly (heat power of 100 kW). Most parts of the equipment units are ordered for industrial manufacturing and some are under development. The facility is supposed to be used for investigations of a wide range of problems concerning both the target-blanket assembly and the accelerator-driver and at the same time explore the dynamical processes arising during their combined operation. Some other applications of the proton beam and neutron source are also discussed. It is possible in future to increase the current and energy of proton or heavy ion beam.