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发明授权
CN105669199B 一种微波介质陶瓷及其制备方法 有权

一种微波介质陶瓷及其制备方法
摘要：
本发明提供了一种微波介质陶瓷及其制备方法。微波介质陶瓷包括主晶相，主晶相的化学表达式为Zr0.8Sn0.2‑x(Mg1/3Nb2/3)xTiO4，其中0＜x≤0.2。经实验表明，本发明提供的微波介质陶瓷材料具有良好的微波介电性能：介电常数εr＝38～42，且在此范围内可调节；品质因数Q*f＝60000～70000GHz；频率温度系数τf＝‑2.5～+6.3×10‑6/℃范围内可调节，温度特性稳定。本发明提供的微波介质陶瓷制备方法烧结温度较低，节约了能源成本，符合低碳环保理念。同时制备工艺简单，无需特殊设备和苛刻工艺条件，适合工业化生产。
摘要（英）：

The invention provides a microwave dielectric ceramic and a preparation method thereof.The microwave dielectric ceramic comprises a main crystal phase.The chemical expression of the main crystal phase is Zr0.8Sn0.2-x(Mg1/3Nb2/3)xTiO4, wherein x is larger than 0 and smaller than or equal to 0.2.An experiment indicates that the microwave dielectric ceramic has good microwave dielectric performance, wherein the dielectric constant epsilon r can be adjusted within the range of 38 to 42; the quality factor Q*f is equal to 60,000 to 70,000 GHz; the frequency temperature coefficient tau f can be adjusted within the range of -2.5*10<-6>/DEG C to +6.3*10<-6>/DEG C, and the temperature characteristic is stable.The preparation method of the microwave dielectric ceramic is low in sintering temperature, energy cost is reduced, and the low carbon and environmental protection concept is met.The preparation process is simple, no special equipment or strict process condition is needed, and the microwave dielectric ceramic is suitable for industrial production.

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