Sinterability and Microwave Dielectric Properties of Li2CO3-V2O5 Added Mg4Nb2O9-CaTiO3 Composite Ceramics-Reference-Cited by-同舟云学术

Sinterability and Microwave Dielectric Properties of Li₂CO₃-V₂O₅ Added Mg₄Nb₂O₉-CaTiO₃ Composite Ceramics

Published:2010-11 Issue: Volume:663-665 Page:1196-1199
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Pei Cui Jin¹,Yao Guo Guang²,Ma Hong²,Tian Xiu Lao²

Affiliation:

1. Yun Cheng University

2. Xi’an University of Posts and Telecommunications

Abstract

The effects of Li2CO3-V2O5 (LV) co-doped on the sinterability, phase compositions and microwave dielectric properties of Mg4Nb2O9-CaTiO3 composite ceramics have been investigated. The phase compositions and microstructure were analyzed using X-ray diffraction, energy dispersive X-ray analysis and scanning electron microscopy techniques. The densification sintering temperature is lowed from 1275oC to 1200oC with an amount LV addition. For the specimen with 1.5 wt% LV addition sintered at 1200oC for 5 h exhibited dielectric properties: εr=23, Q·f=24 000 GHz (at 7.7GHz ), τf =1.0 ppm/oC. These properties were correlated with the formation of non-stoichiometric compound Mg4(Nb1-xTix)2O9-δ.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.663-665.1196.pdf

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