烧结工艺对刚玉/莫来石/钛酸铝复相材料晶相与显微结构的影响  

The Effects of Sintering Process on the Crystalline Phases and Microstructures of Mullite-Corundum-Aluminum Titanate Composites Material

作　　者：王成勇[1] 陈捷[2,1] 

机构地区：[1]福州大学材料科学与工程学院,福州350108 [2]福建工程学院土木工程系,福州350108

出　　处：《中国陶瓷》2013年第11期19-22,共4页China Ceramics

基　　金：福建省科技厅重点项目支助(2011H0003)

摘　　要：以刚玉、粘土和TiO2为原料,合成刚玉/莫来石/钛酸铝复相材料,并主要探讨不同烧结温度和保温时间对复相材料晶相与显微结构的影响,从中确定最佳的烧结温度和保温时间。用XRD法、SEM法分析表征各试样的晶相结构和显微结构,采用Rietveld Quantification软件确定各试样的晶相含量。实验结果,确定最佳的反应烧结温度为1500℃,最佳的保温时间为4 h。In this research, corundum, clay, TiO2 was used as raw material to synthesize Mullite-Corundum-Aluminum titanate composites material. The sintering temperature and time on the crystalline phases and microstructures of composites material were investigated. Hence, The optimum sintering temperature and holding time were determined.X-ray diffraction and scanning electron microscopy techniques were used to characterize the crystalline phases and microstructures of sintered samples. The content of crystalline phases were determined with Rietveld Quantification software. Based on analysis, the optimum calcination temperature is 1500 ℃ and the optimum holding time is 4 h.

关 键 词：烧结温度 保温时间 晶相 显微结构 

分 类 号：TQ174.758.2[化学工程—陶瓷工业]