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

Juan C. Nino; Michael T. Lanagan; Clive A. Randall

doi:10.1557/JMR.2001.0203

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

Juan C. Nino, Michael T. Lanagan, Clive A. Randall

Research output: Contribution to journal › Article

67 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	1460-1464
Number of pages	5
Journal	Journal of Materials Research
Volume	16
Issue number	5
DOIs	https://doi.org/10.1557/JMR.2001.0203
State	Published - May 2001

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Nino, J. C., Lanagan, M. T., & Randall, C. A. (2001). Phase formation and reactions in the Bi₂O₃-ZnO-Nb₂O₅-Ag pyrochlore system. Journal of Materials Research, 16(5), 1460-1464. https://doi.org/10.1557/JMR.2001.0203

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