Enhancing energy storage density of (Ba, Sr)TiO3 ceramic particles by coating with Al2O3 and SiO2

被引：40
|
作者：
Wang, Jinwen [1 ]
Xu, Chao [1 ]
Shen, Bo [1 ]
Zhai, Jiwei [1 ]
机构：
[1] Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2013年 / 24卷 / 09期
关键词：
BARIUM STRONTIUM-TITANATE; DIELECTRIC-PROPERTIES; NANO-PARTICLES; SHELL; BATIO3; NANOPARTICLES; TEMPERATURE; COMPOSITES; CAPACITORS; STRENGTH;
D O I：
10.1007/s10854-013-1248-5
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The dielectric and energy storage properties of Ba0.4Sr0.6TiO3 particles coated by Al2O3 and SiO2 oxide were investigated. Results showed that the dielectric properties and energy storage density were improved apparently. The improvement of the energy storage density can be ascribed to two factors: one was that the breakdown strength was notably improved by the decrease of the porosity and defects; the other was the reduction of the grain size. Furthermore, the optimized composition showed the maximum energy storage density of 5.09 J/cm(3), whereas the energy storage density of uncoated Ba0.4Sr0.6TiO3 was only 0.24 J/cm(3).
引用
收藏
页码：3309 / 3314
页数：6
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