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Journal of Materials Science: Materials in Electronics
Published in: Journal of Materials Science: Materials in Electronics 4/2014

01-04-2014

Reaction sintering of nano-sized ZnO–Nb2O5 powder mixture: sintering, microstructure and microwave dielectric properties

Authors: H. Barzegar Bafrooei, E. Taheri Nassaj, T. Ebadzadeh, C. F. Hu

Published in: Journal of Materials Science: Materials in Electronics | Issue 4/2014

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Abstract

Sintering behavior, microstructures and microwave dielectric properties of ZnNb2O6 (ZN) ceramics prepared by reaction-sintering method were investigated. The X-ray diffraction patterns of the sintered samples revealed single-phase formation with a columbite structure after 1–5 h sintering at 1,025–1,125 °C. After sintering at 1,125 °C for 5 h, the ZN ceramics with the density of 5.56 g/cm3 (98.9 % of the theoretical density) and good microwave dielectric properties of εr = 23.9, Q × f = 51,000 and τf = −62 ppm/°C were obtained. The obtained results demonstrated that the reaction-sintering process is a simple and effective method to prepare the ZN ceramics for applications on microwave dielectric resonators.
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Metadata
Title
Reaction sintering of nano-sized ZnO–Nb2O5 powder mixture: sintering, microstructure and microwave dielectric properties
Authors
H. Barzegar Bafrooei
E. Taheri Nassaj
T. Ebadzadeh
C. F. Hu
Publication date
01-04-2014
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 4/2014
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-014-1774-9

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