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Microwave dielectric ceramic material and preparation method thereof
Provided is a microwave dielectric ceramic material. The microwave dielectric ceramic material comprises a base material and sintering aids. The base material is (1-alpha)Ba6-3xNd8+2xTi18O54-alphaZn2-ySiO4-y, wherein x is larger than or equal to 0.50 and smaller than or equal to 1.0, y is larger than or equal to 0 and smaller than or equal to 0.50, and alpha is larger than or equal to 0.2 and smaller than or equal to 0.6. The sintering aids are at least one of Li2CO3, CuO and Bi2O3. The microwave dielectric ceramic material has the relative dielectric constant of 65 to 75, the Qf value of 9000 to 11000 GHz and the resonant frequency temperature coefficient of +/-10 ppm/DEG C. By analyzing pure raw materials, through the traditional solid-phase ceramic process and the high-energy ball milling combined preparation method, the sintering temperature is reduced to a great extent, and sintering time is shortened. The microwave dielectric ceramic material has the advantages of being low in cost and high in performance, and can be used for manufacturing microwave devices such as ceramic filters and resonators.
Microwave dielectric ceramic material and preparation method thereof
Provided is a microwave dielectric ceramic material. The microwave dielectric ceramic material comprises a base material and sintering aids. The base material is (1-alpha)Ba6-3xNd8+2xTi18O54-alphaZn2-ySiO4-y, wherein x is larger than or equal to 0.50 and smaller than or equal to 1.0, y is larger than or equal to 0 and smaller than or equal to 0.50, and alpha is larger than or equal to 0.2 and smaller than or equal to 0.6. The sintering aids are at least one of Li2CO3, CuO and Bi2O3. The microwave dielectric ceramic material has the relative dielectric constant of 65 to 75, the Qf value of 9000 to 11000 GHz and the resonant frequency temperature coefficient of +/-10 ppm/DEG C. By analyzing pure raw materials, through the traditional solid-phase ceramic process and the high-energy ball milling combined preparation method, the sintering temperature is reduced to a great extent, and sintering time is shortened. The microwave dielectric ceramic material has the advantages of being low in cost and high in performance, and can be used for manufacturing microwave devices such as ceramic filters and resonators.
Microwave dielectric ceramic material and preparation method thereof
CHEN LUGUO (author) / LI GUANGXIN (author) / KANG JIANHONG (author) / ZHAO CHENGGANG (author) / LIU QIHUI (author)
2016-01-20
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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