Structure, dielectric, ferroelectric, and energy density properties of (1-x)BZT-xBCT ceramic capacitors for energy storage applications

被引：177

作者：

Puli, Venkata Sreenivas ^{[1
,2
]}

Pradhan, Dhiren K. ^{[1
,2
]}

Chrisey, Douglas B. ^{[3
]}

Tomozawa, M. ^{[3
]}

Sharma, G. L. ^{[1
,2
]}

Scott, J. F. ^{[4
]}

Katiyar, Ram S. ^{[1
,2
]}

机构：

[1] Univ Puerto Rico, Dept Phys, San Juan, PR 00936 USA

[2] Univ Puerto Rico, Inst Funct Nano Mat, San Juan, PR 00936 USA

[3] Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA

[4] Univ Cambridge, Cavendish Lab, Dept Phys, Cambridge CB0 3HE, England

来源：

JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 05期

基金：

美国国家科学基金会;

关键词：

PIEZOELECTRIC PROPERTIES; MICROSTRUCTURE; FILMS;

D O I：

10.1007/s10853-012-6990-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the dielectric, ferroelectric, and energy density properties of Pb-free (1 - x)BZT-xBCT ceramic capacitors at higher sintering temperature (1600 A degrees C). A significant increase in the dielectric constant, with relatively low loss was observed for the investigated {Ba(Zr0.2Ti0.8)O-3}((1-x) ){(Ba0.7Ca0.3)TiO3} (x) (x = 0.10, 0.15, 0.20) ceramics; however, electric breakdown was low (140, 170, 134 kV/cm), and of which room temperature (300 K) charging curve energy density values are largest 0.88, 0.94, and 0.87 J/cm(3) with maximum high dielectric constant values 7800, 8400, and 5200, respectively. Bulk ceramic BZT-BCT materials have shown interesting energy densities with good energy storage efficiency (72 %) at high sintering temperature; they might be one of the strong candidates for high energy density capacitor applications in an environmentally protective atmosphere.

引用

页码：2151 / 2157

页数：7

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