陕西师范大学学报(自然科学版)2011,Vol.39Issue(3):37-40,4.
CuO-Li2CO3共掺杂低温烧结Ba0.60Sr0.40TiO3陶瓷的介电性能
Dielectric properties of low-temperature sintered Ba0.60Sr0.40TiO3 ceramics co-doped with CuO-Li2CO3
摘要
Abstract
Ba0.60 Sr0.40 TiO3 (BST) ceramic is prepared by the conventional solid state-sintering process at low temperature. The sintering behaviors, phase components, microstructures and the dielectric properties of BST ceramics co-doped with CuO and Li2CO3 is investigated. It indicated that the combination of 0. 2% CuO and 2. 0% Li2CO3 additions is effective in reducing the sintering temperature of Ba0.60 Sr0.40 TiO3ceramics from 1 350*C down to 925"C and the sample sintered at low temperature displayed excellent comprehensive dielectric properties: tr = 2 725, tan $-0. 004 4 ( measured at 10 kHz and 20'C), and a tunability of 32. 2% ( at 10 kHz under a dc electric field of 2 Kv/mm ).关键词
低温烧结/介电性能/相结构Key words
low-temperature sintering/ dielectric properties/ phase component分类
数理科学引用本文复制引用
荆慧霞,王亚娟,张瑜,杨敬娜,吴怡,刘成,刘鹏..CuO-Li2CO3共掺杂低温烧结Ba0.60Sr0.40TiO3陶瓷的介电性能[J].陕西师范大学学报(自然科学版),2011,39(3):37-40,4.基金项目
国家自然科学基金资助项目(50872078 ()
50772065). ()