DETERMINATION OF THE MAXIMUM Ca CONTENT IN La2-zCazZr2O7±δ BY XRD INTENSITY RATIO

摘要：

Complex oxides La2-xCaxZr2O7±δ(x=0.06-0.10) were prepared by a modified Pechini method and a novel strategy based on the X-ray diffraction intensity ratio was developed to determine the maximum Ca content in La2-xCaxZr2O7±δ. Computer simulation predicted that the intensity ratio of (662) and (331) reflections for La2-xCaxZr2O7±δ increased with the increasing Ca content x. XRD analysis showed that with increasing x until 0.08, the ratio increased as predicted, then leveled off with further increase of x. An abrupt change in electrical conductivity was also observed at x of 0.08. It was concluded that the maximum Ca content lay in 0.08 for La2-xCaxZr2O7±δ.

关键词： Ceramics Inorganic compounds Sol-gel chemistry X-ray diffraction Ionic

作者: Zetian Tao Lei Bi Litao Yan Zhiwen Zhu Ranran Peng Wei Liu

作者单位: Laboratory of Advanced Functional Materials and Devices, Department of Materials Science and Engineering, University of Science and Technology of China,Hefei, Anhui 230026, P. R. China

会议类型: 国际会议

会议名称: The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)

会议地点: 武汉

会议语种:英文

页码: 256-261

在线出版日期: 2010-05-02（万方平台首次上网日期，不代表论文的发表时间）