Microwave dielectric properties of Nb2O3-Zn 0.95Mg0.05TiO3+0.25TiO2 ceramics with Bi2O3 addition

Ying Chieh Lee, Hui Hsiang Huang, Wen Hsi Lee, Yen Lin Huang, Shih Feng Chien

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, the effects of BJ2O3 addition of up to 10 wt% on sintering characteristics, microwave dielectric properties and microstructures of Nb2O3-Zno.95Mgo.osTiO 3 + 0.25TiO2 (Nb-ZMT') ceramics, prepared by conventional solid-state routes have been investigated. The sintered ceramic samples were characterized by X-ray diffraction and scanning electron microscopy (SEM). It was found that as the content of Bi2O3 increased, the density of the sintered ceramics increased, and the density of Nb-doped samples with 5 wt% Bi2O3 was over 98% of theoretical density. The dielectric constant of the Nb-doped samples increased with increasing Bi 2O3 content. In addition, ωr of the Nb-doped samples was higher than the undoped samples. The Nb-ZMT' ceramic with 5 wt% Bi 2O3 addition sintered at 900 °C exhibited the optimum dielectric properties: Qx/= 12000 GHz, ωr = 30, and /=-12ppm/°C.

Original languageEnglish
Title of host publicationCeramic Materials and Components for Energy and Environmental Applications - 9th Int. Symp. on Ceramic Materials for Energy and Environmental Applications and the 4th Laser Ceramics Symp.
Pages315-320
Number of pages6
Publication statusPublished - 2010 May 21
EventCeramic Materials and Components for Energy and Environmental Applications - 9th International Symposium on Ceramic Materials for Energy and Environmental Applications and the 4th Laser Ceramics Symposium - Shanghai, China
Duration: 2008 Nov 102008 Nov 14

Publication series

NameCeramic Transactions
Volume210
ISSN (Print)1042-1122

Other

OtherCeramic Materials and Components for Energy and Environmental Applications - 9th International Symposium on Ceramic Materials for Energy and Environmental Applications and the 4th Laser Ceramics Symposium
CountryChina
CityShanghai
Period08-11-1008-11-14

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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