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[en] Methods of differential thermal-, microstructural-, X-ray diffraction analyses have been used as well as results of measuring the microhardness to study for the first time the phase diagram of the Ga₂Te₃-FeTe and GaTe-Fe systems. The Ga₂Te₃-FeTe system is not quasibinary. The GaTe-Fe system is quasibinary. Its eutectic point corresponds to 1053 K and 75 mol.% GaTe

[en] Diagrams of polythermal cross section of Ga₂Te₃-Co, Ni-Ga₂Te₃ are studied by methods of physicochemical analysis. Narrow regions of solubility based on Ga₂Te₃ are detected

[en] The methods of differential thermal, microstructure, X-ray phase analyses and microhardness measurements were used to construct the state diagram of the system FeS-In₂S₃. Support was provided for the formation of the compound composed of FeIn₂S₄ congruently meltable and crystallizable in the spinel structure with the lattice parameter a=10.53 A. Solid solutions of the spinel structure were found to appear in the concentration range 0-55 mole% re FeS. All the homogeneous samples on the side of In₂S₃ are n-type semiconductors

[en] By methods of physicochemical analysis the phase diagrams of In₂S₃-CoS and In₂S₃-NiS systems have been studied. The regions of existence of solid solutions are determined. It has been established that the solubility on the basis of In₂S₃ is as great as 31 mole % (CoS) and 26 mole % (NiS). Previously known congruent compounds, CoIn₂S₄ and NiIn₂S₄, are rather formed by solid-phase reactions. It is shown that the phase diagrams of the systems studied are quasibinary sections with monotectic

[en] Phase diagrams of GaTe-Co, GaTe-Ni systems are plotted using the methods of physicochemical analysis. Narrow ranges of solubility on behalf of GaTe are discovered

[en] Methods of physicochemical analysis were used to study InTe-Fe and In₂Te₃-Fe cross sections, representing quasibinary cross sections of Fe-In-Te ternary system. The regions of existence of solid solutions were determined

[en] Physicochemical study of some polythermal cross sections in the Ni-Ga-Te ternary system is carried out. The projection of the liquidus surface of the Ni-Ga-Te ternary system is plotted. Narrow ranges of solubility on the basis of Ni₃Te₄, Ga₂Te₃, GaTe, Ni₃Te₂, NiGa compounds are found

[en] Diagrams of state of the CuInSe₂-SnSe₂, CuInSe₂-InSe, CuInSe₂-Bi₂Se₂ systems are plotted on the basis of physicochemical analysis data. The studied systems are simple eutectic ones; their alloys may be used for obtaining the CuInSe₂ monocrystals from the solution in the melt. 6 refs., 3 figs

[en] By the Faraday method the magnetic susceptibility of (Insub(2)Ssub(3))sub(1-x)x(FeS)sub(x) (where x <0.55) at 80-300 K is measured. It has been found that all investigated alloys are paramagnetics and their susceptibility obeys the Curie-Weis law. According to the effective magnetic moment value the two-valent state and location of iron ions in octahedral voids of spinel structure by the In[InFesub(x)]sSub(3)+x scheme are confirmed