THERMODYNAMIC FUNCTIONS OF PHASE TRANSFORMATIONS OF AgBiX₂ (X-S, Se, Te) COMPOUNDS

Using DSK and quantitative DTA methods the thermodynamic functions of phase melting and polymorphic transformations of AgBiX₂ (X-S, Se, Te) compounds have been determined. The comparative analysis of the obtained results with the literary data and values ΔSm calculated in some approximations has been carried out. The conclusion about significant change in the structure of near order of AgBiSе₂ and AgBiTe₂ compounds at melting  made.