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Low-dielectric low-loss microwave dielectric ceramic material and preparation method thereof
The invention discloses a low-dielectric low-loss microwave dielectric ceramic material and a preparation method thereof, the chemical general formula of the material is CaMg (1-x) ZnxGe2O6, and x is equal to 0.05-0.3; the preparation method comprises the following steps: weighing CaCO3, MgO, GeO2 and ZnO according to the stoichiometric ratio of the chemical general formula, mixing, carrying out ball milling until the materials are uniformly mixed, and drying to obtain a mixed raw material; the obtained mixed raw materials are placed in a muffle furnace for high-temperature pre-sintering, the pre-sintering temperature is 1000 DEG C, the pre-sintering time is 6 hours, and a mixture is obtained after ball milling and drying are conducted again; adding a binder into the mixture until the mixture is wetted, uniformly mixing, granulating, carrying out compression molding by using a mold, and sintering at high temperature for 6 hours at the sintering temperature of 1260-1300 DEG C to obtain the low-dielectric low-loss microwave dielectric ceramic material, the dielectric constant of the prepared microwave dielectric ceramic material is 7.64-8.1, the Q * f value is up to 25208-64976 GHz, and the dielectric constant of the microwave dielectric ceramic material is 8.2-8.2. Meanwhile, the temperature coefficient of resonance frequency is easier to adjust, and the microwave dielectric ceramic has great application value in industrial production.
本发明公开了一种低介低损耗的微波介质陶瓷材料及其制备方法，该材料的化学通式为：CaMg(1‑x)ZnxGe2O6，其中x＝0.05‑0.3；制备方法，包括：按化学通式的化学计量比，称取CaCO3、MgO、GeO2和ZnO混合，球磨至均匀混合，经干燥得到混合原料；将得到的混合原料置于马弗炉中进行高温预烧，预烧温度1000℃，预烧时间6小时，再次经球磨、干燥后得到混合料；在混合料加入粘结剂至润湿，混合均匀后造粒，并用模具进行压柱成型之后高温烧结，烧结温度1260‑1300℃，烧结时间6小时，得到低介低损耗的微波介质陶瓷材料，本发明制备的微波介质陶瓷材料介电常数为7.64‑8.1，Q×f的值高达25208‑64976GHz，同时拥有更易调节的谐振频率温度系数，在工业生产中有着极大的应用价值。
Low-dielectric low-loss microwave dielectric ceramic material and preparation method thereof
The invention discloses a low-dielectric low-loss microwave dielectric ceramic material and a preparation method thereof, the chemical general formula of the material is CaMg (1-x) ZnxGe2O6, and x is equal to 0.05-0.3; the preparation method comprises the following steps: weighing CaCO3, MgO, GeO2 and ZnO according to the stoichiometric ratio of the chemical general formula, mixing, carrying out ball milling until the materials are uniformly mixed, and drying to obtain a mixed raw material; the obtained mixed raw materials are placed in a muffle furnace for high-temperature pre-sintering, the pre-sintering temperature is 1000 DEG C, the pre-sintering time is 6 hours, and a mixture is obtained after ball milling and drying are conducted again; adding a binder into the mixture until the mixture is wetted, uniformly mixing, granulating, carrying out compression molding by using a mold, and sintering at high temperature for 6 hours at the sintering temperature of 1260-1300 DEG C to obtain the low-dielectric low-loss microwave dielectric ceramic material, the dielectric constant of the prepared microwave dielectric ceramic material is 7.64-8.1, the Q * f value is up to 25208-64976 GHz, and the dielectric constant of the microwave dielectric ceramic material is 8.2-8.2. Meanwhile, the temperature coefficient of resonance frequency is easier to adjust, and the microwave dielectric ceramic has great application value in industrial production.
本发明公开了一种低介低损耗的微波介质陶瓷材料及其制备方法，该材料的化学通式为：CaMg(1‑x)ZnxGe2O6，其中x＝0.05‑0.3；制备方法，包括：按化学通式的化学计量比，称取CaCO3、MgO、GeO2和ZnO混合，球磨至均匀混合，经干燥得到混合原料；将得到的混合原料置于马弗炉中进行高温预烧，预烧温度1000℃，预烧时间6小时，再次经球磨、干燥后得到混合料；在混合料加入粘结剂至润湿，混合均匀后造粒，并用模具进行压柱成型之后高温烧结，烧结温度1260‑1300℃，烧结时间6小时，得到低介低损耗的微波介质陶瓷材料，本发明制备的微波介质陶瓷材料介电常数为7.64‑8.1，Q×f的值高达25208‑64976GHz，同时拥有更易调节的谐振频率温度系数，在工业生产中有着极大的应用价值。
Low-dielectric low-loss microwave dielectric ceramic material and preparation method thereof
一种低介低损耗的微波介质陶瓷材料及其制备方法
XING ZHUO (author) / SONG JULONG (author) / PAN HONG (author)
2024-10-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-dielectric low-loss microwave dielectric ceramic material and preparation method thereof
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