Compatibility Relation of the System ZrO₂+BaO+P₂O₅ and the Electrical Conductivities of ZrO₂+14.55mol%BaO+3mol%P₂O₅ Solid Electrolyte

Abstract

The phase relation of the system ZrO₂+BaO+P₂O₅ was investigated at 1673K. Seven compatibility triangles were detected, ( 1 ) BaO·ZrO₂+3BaO·P₂O₅+10BaO·3P₂O₅, ( 2 ) ZrO₂+BaO·ZrO₂+3BaO·P₂O₅, ( 3 ) ZrO₂ +3BaO·P₂O₅+7BaO·ZrO₂·3P₂O₅, ( 4 ) ZrO₂+7BaO·ZrO₂·3P₂O₅+BaO·ZrO₂·P₂O₅, ( 5 ) ZrO₂+BaO·ZrO₂·P₂O₅+BaO·4ZrO₂·3P₂O₅, ( 6 ) ZrO₂+ZrO₂·2P₂O₅+ZrO₂·P₂O₅, ( 7 ) ZrO₂·P₂O₅+ZrO₂·P₂O₅+BaO·4ZrO₂·3P₂O₅. In addition to the phase diagram studies, the electrical conductivities of ZrO₂+14.55 mol% BaO+3mol%P₂O₅ electrolyte were measured to find a suitable three-phase electrolyte for rapid determinations of phosphorus in hot metal.