ABSTRACT

An attempt is made to estimate values of total and partial equilibrium pressures of vapour species over CdSnAs2, CdGeAs2, CdSiAs2, ZnSnAs2 ZnGeAs2 ZnSiAs2 CdGeP2 CdSiP2 ZnGeP2, ZnSiP2 at the melting point and lower temperatures. Standard thermodynamic relations and equation for ideal gas state were used. Conditions either stoichiometry or A2-C5-interaction in vapour phase were assumed. Results of weigh-loss measurements for ZnGeP2 are presented.