Changes in ferroelectric properties of barium titanate ceramic with compressive stress

摘要：

In this work, barium titanate (BT) ceramic was prepared using a conventional mixed oxide method. The effect of uniaxial compressive stress on the ferroelectric properties of BT ceramics were investigated. The changes in ferroelectric properties were observed at stress up to 60MPa using a compressometer in conjunction with a modified Sawyer-Tower circuit. The results showed that applied stress had a significant influence on the ferroelectric properties of BT ceramics. Ferroelectric characteristics, i. e. the area of the ferroelectric hysteresis (P-E) loop, the saturation polarization (Psat), the remanent polarization (Pr) and the loop squareness (Rsq), decreased with increasing compressive stress, while the coercive field (Ec) remained constant. Stress-induced domain wall motion suppression and non-180° ferroelectric domain switching processes are responsible for the changes observed.

作者: Wanwilai Chaisan Rattikorn Yimnirun Supon Ananta

作者单位: Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

会议类型: 国际会议

会议名称: 第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)

会议地点: 杭州

会议语种:英文

页码: 205-208

在线出版日期: 2007-05-16（万方平台首次上网日期，不代表论文的发表时间）