Low Temperature Sintering and Microwave Dielectric Properties of Zinc Titanate Ceramics for LTCC Applications

Abstract:

The effects of CuO-MoO3 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 850 to 1050 °C. The sintering temperature of ZnO-TiO2 ceramics with CuO-MoO3 addition could be effectively reduced to 950 °C due to the liquid phase effects resulting from the additives. A proper amount of CuO-MoO3 addition could effectively improve the densification and microwave dielectric properties of ZnO-TiO2 ceramics. ZnO-TiO2 ceramics with 3 wt% addition sintered at 950 °C for 4 h exhibited better microwave dielectric properties as follows: εr of 26.8, a Q×f value of 16780 GHz at 5.42 GHz, and a τ f value of +34.7 ppm/°C.

• Periodical: Key Engineering Materials (Volumes 368-372)
• Pages: 179-182
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.368-372.179
• Online since: February 2008
• Authors: Zong Chi Liu, Dong Xiang Zhou, Shu Ping Gong
• Keywords: CuO-MoO₃, Liquid Phase Sintering (LPS), Microwave Dielectric Properties, ZnO-TiO₂

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