陕西师范大学学报：自然科学版2011，Vol.39Issue(4)：34-38,5.
Al_2O_3掺杂CaCu_3Ti_4O_（12）陶瓷的介电性能与I-U非线性特征
Dielectric properties and current-voltage nonlinear behavior of Al_2O_3-doped CaCu_3Ti_4O_（12） ceramics
摘要
Abstract
The CaCu3Ti4O12 ceramics doped with various Al2O3（0,0.15,0.30 and 0.40） contents were fabricated by a solid-state reaction method.The results showed that, Al2O3 additive has not only reduced the dielectric loss of low frequency range but also significantly raised the breakdown voltage.When Al2O3 doping concentration x was 0.30,the specimen has achieved the best comprehensive electrical properties,including a dielectric constant（εr） of 2 000,dielectric loss（tan δ） of 0.04,breakdown voltage （Eb） of 1 084 V/mm,and a nonlinear coefficient of 4.6.关键词
压敏电压/I-U非线性特征/巨介电常数Key words
breakdown voltage/I-U behavior/Giant dielectric constant分类
物理学引用本文复制引用
王亚娟,曹蕾,荆慧霞,杨敬娜,张瑜,吴怡,刘鹏..Al_2O_3掺杂CaCu_3Ti_4O_（12）陶瓷的介电性能与I-U非线性特征[J].陕西师范大学学报：自然科学版,2011,39(4):34-38,5.基金项目
国家自然科学基金资助项目 （）
