Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5440271 | Journal of the European Ceramic Society | 2017 | 9 Pages |
Abstract
A series of (1-x)(0.65BaTiO3-0.35Bi0.5Na0.5TiO3)-xNa0.73Bi0.09NbO3 ((1-x)BBNT-xNBN) (x = 0-0.14) ceramics were designed and fabricated using the conventional solid-state sintering method. The microstructure, dielectric property, relaxor behavior and energy storage property were systematically investigated. X-ray diffraction results reveal a pure perovskite structure and dielectric measurements exhibit a relaxor behavior for the (1-x)BBNT-xNBN ceramics. The slim polarization electric field (P-E) loops were observed in the samples with x â¥Â 0.02 and the addition of Na0.73Bi0.09NbO3 (NBN) could decrease the remnant polarization (Pr) of the (1-x)BBNT-xNBN ceramics obviously. The sample with x = 0.08 exhibits the highest energy storage density of 1.70 J/cm3 and the energy storage efficiency of 82% at 172 kV/cm owing to its submicron grain size and high relative density. These results show that the (1-x)BBNT-xNBN ceramics may be promising lead-free materials for high energy storage density capacitors.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Haibo Yang, Fei Yan, Ying Lin, Tong Wang, Fen Wang, Yilin Wang, Lina Guo, Wangda Tai, Han Wei,