LaGaO3 BASED ELECTRON-OXYGEN ION MIXTURE CONDUCTOR AND OXYGEN TRANSMISSIVE FILM USING IT

摘要

PROBLEM TO BE SOLVED: To provide a LaGaO3 electron-oxygen ion mixture conductor having oxygen ion conductivity, electron conductivity and oxygen transmissivity and to provide an oxygen transmissive film having excellent performance of transmitting oxygen with only a difference in oxygen partial pressure. SOLUTION: La2O3, SrCO3, Ga2O3, Fe2O3 are mixed at a preset stoichiometric ratio, the mixture is calcined at 1000 deg.C in an atmospheric air for six hours and the obtained calcination is crushed, and then sufficiently mixed again and fired at 1500 deg.C in an atmospheric air for six hours. The sintered body is processed with polishing to a preset size to obtain an oxygen transmissive film. The oxygen transmissive film can transmit oxygen from a higher side to a lower side of oxygen concentration and have a oxygen transmission amount of 89mol/cm2.min.