PHASE-EQUILIBRIUM IN THE GEO2-TEO2-V2O5 SYSTEM

The aim of the present investigation was to study the phase image of the ternary GeO//2-TeO//2-V//2O//5 system. The results of the investigations allowed us to build up the phase diagram of the 2TeO//2V//2O//5-GeO//2 section. It appears to be of a simple eutectic type with a eutectic point at about 45 mol % GeO//2 and T//E equals 430 degree C. The special course of the liquidus line could be assigned to the probability of the existence of metastable liquid-phase separation.