Enhanced energy-storage properties of BaZrO3-modified 0.80Bi0.5Na0.5TiO3-0.20Bi0.5K0.5TiO3 lead-free ferroelectric ceramics

被引：55
作者：
Li, Qiang [1 ]
Wang, Ju [1 ]
Liu, Zhiyong [1 ]
Dong, Guangzhi [1 ]
Fan, Huiqing [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2016年 / 51卷 / 02期
关键词：
DIELECTRIC-PROPERTIES; STRAIN RESPONSE; GIANT STRAIN; PERFORMANCE;
D O I：
10.1007/s10853-015-9446-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Large energy-storage density is observed in BaZrO3 (BZ)-modified 0.80Bi(0.5)Na(0.5)TiO(3)-0.20Bi(0.5)K(0.5)TiO(3) (BNBK) lead-free ferroelectric (FE) ceramics synthesized by conventional solid-state reaction. The energy-storage property of (1 - x)BNBK-xBZ has been investigated. Certain content of BZ can enhance the energy-storage property of BNBK by enhancing the breakdown strength. The largest energy-storage density W (1) = 0.73 J/cm(3) and efficiency of energy storage eta = 0.75 at E = 70 kV/cm are achieved in the 0.96BNBK-0.04BZ, which is significantly higher than that of BNT-based and lead-containing FE materials reported. Its energy-storage density exhibits the superior thermal stability with temperature range of 30-100 A degrees C. Those properties promise that the environmental friendly (1 - x)BNBK-xBZ ceramics are candidate for applications of energy-storage devices.
引用
收藏
页码：1153 / 1160
页数：8
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