POLYTHERMAL SECTION SnSe–CuSbSe2 OF PHASE DIAGRAM OF THE Cu2Se–SnSe–Sb2Se3 SYSTEM

Phase equilibria in the Cu2Se–SnSe–Sb2Se3 system were studied along the SnSe–CuSbSe2 section by means of differential-thermal analysis and X-ray diffraction technique and its phase diagram was constructed. It was found that the SnSe–CuSbSe2 section is quasibinary and refers to an eutectic type with limited solid solutions based on the starting compounds. The solubility based on SnSe and CuSbSe2 is maximum at the eutectic temperature (700 K) and reaches 25 and 5 mol% respectively