Gibbs Free Energy of Formation of 3Y2O3·5Al2O3
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1989年第4期
论文作者：徐秀光 王常珍 涂赣峰
文章页码：284 - 285
摘 要：<正> Thermodynamic properties of 3Y2O3·5Al2O3double compound have been determined with CaF2single crystal electrolyte galvanic cell at1049 K to 1230 K.The galvanic cell used canbe expressed as:Pt,O2（g）丨Y2O3（s）,YOF（s）丨CaF2丨YOF（s）,3Y2O3·5Al2O3（s）丨Al2O3（s）丨O2（g）,Pt,of which the cell reaction is;3Y2O3（s）+SAl2O3（s）=3Y2O3·SAl2O3（s）The following result is obtained:AfG°（3Y2O3·5Al2O3）=-939500+765.90T±710J/molwhere,△fG°（3Y2O3·5Al2O3）is the free energyof formation of 3Y2O3·5Al2O3 from Y2O3 andAl2O3.
徐秀光，王常珍，涂赣峰
摘 要：<正> Thermodynamic properties of 3Y2O3·5Al2O3double compound have been determined with CaF2single crystal electrolyte galvanic cell at1049 K to 1230 K.The galvanic cell used canbe expressed as:Pt,O2（g）丨Y2O3（s）,YOF（s）丨CaF2丨YOF（s）,3Y2O3·5Al2O3（s）丨Al2O3（s）丨O2（g）,Pt,of which the cell reaction is;3Y2O3（s）+SAl2O3（s）=3Y2O3·SAl2O3（s）The following result is obtained:AfG°（3Y2O3·5Al2O3）=-939500+765.90T±710J/molwhere,△fG°（3Y2O3·5Al2O3）is the free energyof formation of 3Y2O3·5Al2O3 from Y2O3 andAl2O3.
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