A novel low loss microwave dielectric ceramic ZnZrNb1.84Sb0.16O8 with wolframite structure

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• 作者：Yonggui Zhao ; Ping Zhang
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：27
• 期：3
• 页码：2933-2937
• 全文大小：910 KB
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• 作者单位：Yonggui Zhao (1)
  Ping Zhang (1)
  
  1. School of Electronic and Information Engineering, Key Laboratory of Advanced Ceramics, Machining Technology of Ministry of Education, Tianjin University, Tianjin, 300072, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1573-482X

文摘

Novel microwave dielectric materials of ZnZrNb_1.84Sb_0.16O₈ ceramics with high Q were prepared through a conventional solid-state route and investigated for the first time. The XRD patterns revealed that all the specimens exhibited a single phase with the wolframite structure of ZrZrNb₂O₈ sintered in the temperature range of 1200–1300 °C. The microwave dielectric properties of ZnZrNb_1.84Sb_0.16O₈ ceramics were strongly dependent on the sintering temperature and relative density. Excellent microwave dielectric properties with high Q × f of 89, 400 GHz (at 7.357 GHz), ε_r of 26.27, and τ_f values of −56.99 ppm/oC could be obtained sintered at 1250 °C for 4 h.