Studies on the thermodynamic and the miscibility gap of the Cu2O-Al2O3-SiO2 pseudo-ternary system

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• 作者：Qiuguo XiaoXinhua Zhao
• 会议时间：2008-11-01
• 关键词：热分析法 ; 液态溶解度 ; 伪三元体系 ; 氧化亚铜
• 作者单位：Qiuguo Xiao(College of Chemistry and Chemical Engineering,Hunan University of Scuence and Technology,Hunan,411201,PR China.)Xinhua Zhao(College of Chemistry,Beijing Normal University,Beijing,100875.)
• 母体文献：第十四届全国相图会议暨国际相图与材料设计研讨会论文集
• 会议名称：第十四届全国相图会议暨国际相图与材料设计研讨会
• 会议地点：长沙
• 主办单位：中国物理学会
• 语种：chi

摘要

This paper has investigated the eutectic point and the microscopic morphologies of the samples in the miscibility gap of the Cu2O-Al2O3-SiO2 pseudo-ternary system on the basis of the reported isothermal section of this system at 1150℃.The eutectic point of the Cu2O-Al2O3-SiO2 pseudo-ternary system was determined by the thermal anatysis.Then,the microscopic morphology of the samples with different batch compositions wcre observed by electronic scanning microscope.The results indicated that large differences existed among the different compositions in the miscibility gap of Cu2O-Al2O3-SiO2 pseudo-ternary system.