Unique high temperature polarization stability state in Bi0.5Na0.5TiO3–BaTiO3system at the morphotropic phase boundary
- Resource Type
- Article
- Authors
- Yang, Ling; Zhou, Changrong; Zeng, Weidong; Yuan, Changlai; Chen, Guohua; Xiao, Jianrong; Ma, Jiafeng; Zhou, Qin
- Source
- Physica Status Solidi (A) - Applications and Materials Science; August 2015, Vol. 212 Issue: 8 p1785-1788, 4p
- Subject
- Language
- ISSN
- 18626300; 18626319
The high‐temperature stability of piezoelectric property is an important merit for applications at elevated temperatures. However, understanding the depolarization mechanism is a fundamental issue that remained unclear for decades. In this study, the ex situdepolarization behavior between open‐circuited and short‐circuited annealed samples is measured for (1–x)Bi0.5Na0.5TiO3–xBaTiO3(BNT–xBT) ceramics. A unique high temperature polarization stability state with respect to the prominent improvement depolarization temperature is observed for the morphotropic phase boundary (MPB) composition (x= 0.06) with open‐circuited annealed samples. It is suggested that this enhancement can be attributed to the alignment of the nanodomains induced by the bias fields.