Effect of Bi(Zn1/2Nb2/5)O3 addition on phase transition and energy storage properties of BaTiO3 ceramics

被引：13

作者：

Ma, Cuiying ^{[1
]}

Zhang, Ruiying ^{[1
]}

Zhang, Guangwei ^{[2
]}

Du, Huiling ^{[1
]}

Liu, Jia ^{[1
]}

Liang, Ruinan ^{[1
]}

Wang, Zhaoguo ^{[1
]}

机构：

[1] Xian Univ Sci & Technol, Coll Mat Sci & Engn, Xian 710054, Shaanxi, Peoples R China

[2] Xian Huashan Tungsten Prod Co Ltd, Xian 710043, Shaanxi, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2023年 / 55卷

基金：

中国国家自然科学基金;

关键词：

Phase structure; Dielectric property; Energy storage property; BaTiO3-based ceramic; LEAD-FREE CERAMICS; FERROELECTRIC CERAMICS; TEMPERATURE; CAPACITORS; DENSITY; STABILITY; MICROSTRUCTURE; EFFICIENCY; LA;

D O I：

10.1016/j.cap.2023.08.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bi(Zn1/2Nb2/5)O3-modified BaTiO3 ceramics were designed with formula (1-x)BaTiO3-xBi(Zn1/2Nb2/5)O3 (0 & LE; x & LE; 0.15) and fabricated using conventional solid-state route. With increasing Bi(Zn1/2Nb2/5)O3 concentration, grain volume increased and phase structure was transformed from tetragonal to pseudo-cubic. Dielectric prop-erties changed from temperature-dependent to temperature-insensitive and curves were flattened. Additionally, higher pseudo-cubic phase content induced slim P-E loop and low Pr. Therefore, 0.94BaTiO3-0.06Bi(Zn1/2Nb2/5) O3 ceramic achieved energy storage density of 1.85 J/cm3 and high energy efficiency of 91.2% under electric field of 230 kV/cm. This energy storage density was 5 times higher than that of pure BT ceramic. Meanwhile, energy storage properties of this ceramic exhibited excellent thermal stability in the range of 30-120 degrees C and good frequency stability over 10-100 Hz. This work provides promising alternative option in energy storage materials.

引用

页码：1 / 8

页数：8

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