Phase formation and reactions in the Bi2O3-ZnO-Nb2O5-Ag pyrochlore system

被引：64

作者：

Nino, JC ^{[1
]}

Lanagan, MT ^{[1
]}

Randall, CA ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab, Ctr Dielect Studies, University Pk, PA 16802 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2001年 / 16卷 / 05期

关键词：

D O I：

10.1557/JMR.2001.0203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mixed-phase compositions in the Bi2O3-ZnO-Nb2O5 pyrochlore system have been previously identified as potential low-fire dielectric composites for high-frequency multilayer devices. However, there has been a problem with the ability to co-process this material with silver. It was found that an intermediate BiNbO4 phase that occurs during calcination can interact with silver during co-sintering, forming a deleterious phase. Processing routes to control the presence of remanent BiNbO4 were investigated, such as ZnO stoichiometric adjustment, low partial pressure of oxygen sintering atmosphere, and specific temperature-time dwells.

引用

页码：1460 / 1464

页数：5

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