Optimization of energy storage density in ceramic capacitors

被引：212

作者：

Fletcher, NH ^{[1
]}

Hilton, AD ^{[1
]}

Ricketts, BW ^{[1
]}

机构：

[1] AUSTRALIAN NUCL SCI & TECHNOL ORG,RES LABS,MENAI,NSW 2234,AUSTRALIA

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1996年 / 29卷 / 01期

关键词：

D O I：

10.1088/0022-3727/29/1/037

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A theoretical treatment, based on the Devonshire theory of ferroelectrics, is presented to describe the storage of electrostatic energy in ferroelectric and paraelectric materials at very high field strengths. In all cases, optimal energy density is achieved by using compositions with Curie temperatures well below the operating temperature. The theory is applied to barium-strontium titanate ceramics and optimal compositions are deduced for energy storage at given working fields. The theory is supported by experimental data showing energy densities up to 8 J cm(-3) at 100 kV mm(-1).

引用

页码：253 / 258

页数：6

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