Phase Composition and Microstructure of Ca1-3xLn2xTiO3 (Ln=La, Nd, Sm)Ceramics

摘要：

　　Ca1-3xLn2xTiO3 (Ln=La,Nd,Sm; x=0.13,0.20) ceramics were investigated systematically to dicuss the influences of sintering temperature,compositions,Ln3+ ions on its sintering property,crystal structure and microstructure.The results show that the dense ceramics were obtained in the sintering temperature range of 1300~1350 ℃ and the relative density reached over 97%.Sintering temperature was 50~150 ℃ lower than previous reports.Single orthogonal perovskite structure phase was formed except that a little secondary phase Sm2Ti2O7 was detected by XRD analysis when x=0.20 and Ln=Sm.The growth pattern of Ca1-3xLn2xTiO3 grains was terracing growth.

关键词： Ca1-3xLn2xTiO3 Microstructure Average Electronegativity Difference Tolerance factor

作者: Bingliang LIANG Yunlong AI Xinghua ZHENG Deping TANG Fei HE

作者单位: College of Materials Science and Engineering, Nanchang Hangkong University, No.696 South Fenghe Road College of Materials Science and Engineering, Fuzhou University, No.2 Xueyuan Road, Fuzhou, Fujian,

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 36-40

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）