Crystal structure of dense nanocrystalline BaTiO3 ceramics

被引：92
|
作者：
Xiao, C. J. [1 ,2 ]
Jin, C. Q. [2 ]
Wang, X. H. [3 ]
机构：
[1] Henan Univ Technol, Dept Mat Sci & Engn, Zhengzhou, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[3] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2008年 / 111卷 / 2-3期
关键词：
nanocrystalline ceramics; crystal structure; multiphase coexistence;
D O I：
10.1016/j.matchemphys.2008.01.020
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dense nanocrystalline BaTiO3 ceramics with the average grain size of 30 nm was sintered by the pressure assisted method. The Raman spectroscopy and the Rietveld refinement were employed to characterize the structural information of the nanocrystalline BaTiO3 ceramics. The structural parameters and the reliability factors for the nanocrystalline BaTiO3 ceramics were successfully determined by the Rietveld refinement based on the analysis of Raman spectra. A multiphase coexistence of tetragonal and orthorhombic phases was observed in 30 nm BaTiO3 ceramics at room temperature. The phenomenon can be explained by the internal stress. (C) 2008 Published by Elsevier B.V.
引用
收藏
页码：209 / 212
页数：4
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