Microwave dielectric properties and microstructures of Ca(Nb1−xTax)2O6 ceramics

被引：0
|
作者：
Yih-Chien Chen
Min-Zhe Weng
Kuang-Chiung Chang
机构：
[1] Lunghwa University of Science and Technology,Department of Electrical Engineering
来源：
Journal of Materials Science: Materials in Electronics | 2014年 / 25卷
关键词：
Dielectric Constant; Relative Density; Resonant Frequency; Sinter Temperature; Temperature Coefficient;
D O I：
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学科分类号：
摘要：
This study elucidates the microwave dielectric properties and microstructures of Ca(Nb1−xTax)2O6 ceramics with a view to their potential for microwave devices. The Ca(Nb1−xTax)2O6 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The X-ray diffraction patterns of the Ca(Nb0.93Ta0.07)2O6 ceramics revealed no significant variation of phase with sintering temperatures. A dielectric constant (ɛr) of 17.7, a quality factor (Q × f) of 117,000 GHz, and a temperature coefficient of resonant frequency (τf) of −51 ppm/°C were obtained for Ca(Nb0.93Ta0.07)2O6 ceramics that were sintered at 1,400 °C for 4 h.
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页码：2475 / 2481
页数：6
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