Preparation of BaTiO3-based ceramics by nanocomposite doping process

被引：23

作者：

Li, Bo ^{[1
]}

Zhang, Shuren ^{[1
]}

Zhou, Xiaohua ^{[1
]}

Wang, Sheng ^{[1
]}

Chen, Zhu ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Chengdu 610054, Sichuan, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2007年 / 42卷 / 06期

关键词：

D O I：

10.1007/s10853-006-1238-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

BaTiO3-based ultrafine nonreducible dielectrics for multilayer ceramic capacitors were prepared by a newly developed nanocomposite doping process. According to TG-DTA, XRD and TEM analysis, the nanocomposite dopants via sol-gel method were uniform and well dispersive. The micromechanism was investigated based on comparing conventional process with nano-doping process. It indicated that due to the special nano-effect, doping effect of additives became more effective and the microstructure and dielectric properties of ceramics were improved. The results showed that high performance dielectrics satisfying X8R specification were achieved, with high dielectric constant of 2,900, low dielectric loss of 0.6% and large insulation resistivity of 10(12) Omega cm.

引用

页码：2090 / 2096

页数：7

共 19 条

[1] INFLUENCE OF CORE SHELL GRAINS ON THE INTERNAL-STRESS STATE AND PERMITTIVITY RESPONSE OF ZIRCONIA-MODIFIED BARIUM-TITANATE [J].