Vaporization Thermodynamics of the Ga₂O₃-SnO₂-ZnO System

The Ga₂O₃-SnO₂-ZnO (GSZO) system has been studied by Knudsen effusion mass spectrometry (KEMS) in the temperature range 1305-1495 K. The incongruent character of vaporization processes in the whole composition range of the GSZO system was observed. The main thermodynamic characteristics of heterogeneous equilibria in the system have been determined, as well as the standard enthalpies of reactions involving Zn₂SnO₄ and ZnGa₂O₄ spinels. A p–x vertical section of the phase diagram of the GSZO system has been plotted along the GaO_1.5 and SnO₂ equimolar ratio line.