Quantitative analysis of domain texture in polycrystalline barium titanate by polarized Raman microprobe spectroscopy
Quantitative analysis of domain texture in polycrystalline barium titanate by polarized Raman microprobe spectroscopy
复制标题
DOI：
10.1063/1.2822464
复制
发表时间：
2007-12
影响因子：
3.2
通讯作者：
Tatsuo Sakashita;H. Chazono;G. Pezzotti
中科院分区：
文献类型：
--
作者：
Tatsuo Sakashita;H. Chazono;G. Pezzotti
本文用微探针偏振拉曼光谱仪定量测定了多晶钛酸钡（BaTiO_3，以下简称BT）陶瓷中的畴分布。BT陶瓷的晶体学织构和畴取向分布，根据铁弹性原理施加应力时切换，从选定的声子模式的相对强度确定，考虑到声子模式强度的角度依赖性的理论分析的tetraxylBT相。此外，拉曼强度的角度依赖性测量多晶BT依赖于统计分布的域角度的激光显微探针，这是明确考虑到在这项工作中获得的定量分析域取向的面内织构BT多晶材料。
A quantitative determination of domain distribution in polycrystalline barium titanate (BaTiO3, henceforth BT) ceramics has been pursued with the aid of a microprobe polarized Raman spectrometer. The crystallographic texture and domain orientation distribution of BT ceramics, which switched upon applying stress according to ferroelasticity principles, were determined from the relative intensity of selected phonon modes, taking into consideration a theoretical analysis of the angular dependence of phonon mode intensity for the tetragonal BT phase. Furthermore, the angular dependence of Raman intensity measured in polycrystalline BT depended on the statistical distribution of domain angles in the laser microprobe, which was explicitly taken into account in this work for obtaining a quantitative analysis of domain orientation for in-plane textured BT polycrystalline materials.