Effect of bismuth addition on sintering behavior and microwave dielectric properties of zinc titanate ceramics

Hsun Chin Chen, Ming Hang Weng, Jui Hong Horng, Mau Phon Houng, Yeong Her Wang

研究成果: Article

7 引文 斯高帕斯(Scopus)

摘要

The influences of Bi2O3 addition on the sintering behavior and microwave dielectric properties of ZnO-TiO2 ceramics were investigated. ZnO-TiO2 ceramics were prepared with conventional solid-state method and sintered at temperatures from 950°C to 1,100°C. The sintering temperature of ZnO-TiO2 ceramics with Bi 2O3 addition could be effectively reduced to 1,000°C due to the liquid-phase effects resulting from the additives. A proper amount of Bi2O3 addition could effectively improve the densification and dielectric properties of ZnO-TiO2 ceramics. The temperature coefficient of resonant frequency could be controlled by varying the sintering temperature and lead to a zero τf value. At 1,000°C, 1ZnO-1TiO2 ceramics with 1 wt.% addition gave better microwave dielectric properties εr of 29.3, a Q × f value of 22,000 GHz at 8.36 GHz, and a τf value of +17.4 ppm/°C.

原文English
頁(從 - 到)119-124
頁數6
期刊Journal of Electronic Materials
34
發行號1
DOIs
出版狀態Published - 2005 一月

    指紋

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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