Electron Microscopy Study of Ferroelectric Domains and Microstructural Defects in Bi- and Zn-Modified Pb(Ni1/3Nb2/3)O3- PbZrO3-PbTiO3 Piezoelectric Ceramics

摘要：

Ferroelectric domain configurations and microstructural defects in the Bi- and Zn-modified Pb(Ni1/3Nb2/3)O3-PbZrO3-PbTiO3 piezoelectric ceramics were investigated by transmission electron microscopy (TEM) and selected area electron diffraction. In the samples with tetragonal symmetry, labyrinthic domain configurations with 90° a-c domains were observed besides the herringbone-like configuration, parallel band-shaped and/or wedge-shaped domains. Polar nanodomains with local random contrast were observed in the samples with rhombohedral symmetry but close to the paraelectric phase region, and the effects of electron beam irradiation on the local random diffraction contrast were also studied. Microstructural defect such as anti-phase boundaries in this piezoelectric system was also revealed by TEM.

作者: X.H. Zhu Y. Song J.M. Zhu S.H. Zhou Z.G. Liu.

作者单位: National Laboratory of Solid State Microstructures,Department of Physics,Nanjing University,Hankou Road 22,Nanjing 210093,China

会议类型: 国际会议

会议名称: 2009 The 18th IEEE International Symposium on Applications of Ferroelectrics(2009年国际铁电学暨IEEE国际铁电应用联合会议)

会议地点: 西安

会议语种:英文

页码: 105-108

在线出版日期: 2009-08-23（万方平台首次上网日期，不代表论文的发表时间）