Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1808270 | Physica B: Condensed Matter | 2016 | 6 Pages |
Abstract
Lead free (Bi0.5Na0.5)1−xBaxTiO3 (x=0.6, 0.7, 0.8, 0.9) ferroelectric ceramics were synthesized by the traditional solid state reaction method. Sintering was carried out at 1200 °C for 2 h in air atmosphere. The structural, microstructure and Ferroelectric of ceramics were investigated. In dielectric studies, a diffuse phase transition was exhibited and a dielectric relaxation behavious was observed at high temperature range. Impedance analysis characterized grain and grain boundaries resistivities of the ceramics and calculated activation energy and the activation energy for conduction. Polaron theory indicates that the relaxation of the samples at high temperatures was associated with the hopping ions caused by oxygen vacancies.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Feng Chen, Qiu-Xiang Liu, Xin-Gui Tang, Yan-Ping Jiang, Jing-Long Yue, Jin-Kai Li,