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Synthesis and Microwave Dielectric Properties of Mg5Nb4TiO17 Ceramics

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Abstract:

Mg5Nb4TiO17 ceramic was prepared by the conventional solid-state route for the first time and its microwave dielectric properties were investigated. The crystal structure and microstructure were analyzed using X-ray diffraction and scanning electron microscopy techniques. With increasing sintering temperature, the dielectric constant (εr) and quality factor (Q×f) increased firstly and then decreased, while the τf nearly unchanged. Mg5(NbTi)4O15-MgNb2O6 composite ceramics sintered at 1200 oC exhibits microwave dielectric properties of εr=15.1, Q×f=34,266.6 GHz (at 8.5GHz), τf=-63.8 ppm/oC.

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Progress in Functional Materials View Preview

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Periodical:

Key Engineering Materials (Volume 538)

Pages:

229-232

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.538.229

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Online since:

January 2013

Authors:

Guo Guang Yao, Hong Ma, Xiu Lao Tian

Keywords:

Ceramic, Dielectric Property, X-Ray Diffraction (XRD)

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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