Microstructural investigations of barium titanate-based material for base metal electrode ceramic multilayer capacitor

被引：44

作者：

Metzmacher, C ^{[1
]}

Albertsen, K ^{[1
]}

机构：

[1] Philips Res Labs, D-52085 Aachen, Germany

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2001年 / 84卷 / 04期

关键词：

D O I：

10.1111/j.1151-2916.2001.tb00747.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructures of BME-X7R ceramics have been investigated by imaging and analytical TEM, By varying the sintering conditions (pressing, sintering temperature and atmosphere), the microstructure changes drastically, and dislocation loops can be observed. These defects most probably are caused by an ordering of oxygen vacancies in the lattice, and the density appears to be correlated to the oxygen partial pressure applied during the reoxidation step. For pressed and unpressed ceramic foils, a model for different sintering behaviors according to liquid-phase assistance is given that is based on a kinetically determined microstructure rather than thermodynamic equilibrium.

引用

页码：821 / 826

页数：6

共 23 条

[1] Donor-acceptor charge complex formation in barium titanate ceramics: Role of firing atmosphere [J].