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Niobium-tantalum-zirconium-magnesium microwave dielectric ceramic material and preparation method thereof
The invention provides a niobium-tantalum-zirconium-magnesium microwave dielectric ceramic material and a preparation method thereof, the chemical general formula of the material is MgZrNbTaO8, the crystal phase of the material is of a pure-phase ixiolite structure, and the raw materials are MgO, Ta2O5, ZrO2 and Nb2O5; the preparation method comprises the following steps: burdening, mixing, drying slurry, pre-sintering, ball-milling, granulating, pressing a green body and sintering. The dielectric property of the ceramic material is excellent, and the microwave dielectric property of the ceramic material can be adjusted only by simply changing the sintering temperature; the ceramic material has excellent dielectric properties when sintered at 1400 DEG C, specifically epsilon r = 24, Q x f = 120,000 GHz and tauf =-46 ppm/DEG C, the quality factor is improved by 70%, the ceramic material does not need to be added with a sintering aid, only one-time pre-sintering is needed, the preparation process is simple, and reduction of the production cost is facilitated.
本发明提供了一种铌钽锆镁微波介质陶瓷材料及制备方法，材料的化学通式为MgZrNbTaO8,其晶相为纯相锰钽矿结构，原料为MgO、Ta2O5、ZrO2、Nb2O5；制备方法包括步骤：配料、混料、烘干浆料、预烧、球磨、造粒、压制生坯、烧结；该陶瓷材料的介电性能优异，只需简单改变烧结温度即可对其微波介电性能进行调节；在1400℃烧结时，具备极其优异的介电性能，具体为εr＝24，Q×f＝120,000GHz，τf＝‑46ppm/℃，其品质因数提升了70％，本发明陶瓷材料无需添加烧结助剂，只需要一次预烧，制备工艺简单，有利于降低生产成本。
Niobium-tantalum-zirconium-magnesium microwave dielectric ceramic material and preparation method thereof
The invention provides a niobium-tantalum-zirconium-magnesium microwave dielectric ceramic material and a preparation method thereof, the chemical general formula of the material is MgZrNbTaO8, the crystal phase of the material is of a pure-phase ixiolite structure, and the raw materials are MgO, Ta2O5, ZrO2 and Nb2O5; the preparation method comprises the following steps: burdening, mixing, drying slurry, pre-sintering, ball-milling, granulating, pressing a green body and sintering. The dielectric property of the ceramic material is excellent, and the microwave dielectric property of the ceramic material can be adjusted only by simply changing the sintering temperature; the ceramic material has excellent dielectric properties when sintered at 1400 DEG C, specifically epsilon r = 24, Q x f = 120,000 GHz and tauf =-46 ppm/DEG C, the quality factor is improved by 70%, the ceramic material does not need to be added with a sintering aid, only one-time pre-sintering is needed, the preparation process is simple, and reduction of the production cost is facilitated.
本发明提供了一种铌钽锆镁微波介质陶瓷材料及制备方法，材料的化学通式为MgZrNbTaO8,其晶相为纯相锰钽矿结构，原料为MgO、Ta2O5、ZrO2、Nb2O5；制备方法包括步骤：配料、混料、烘干浆料、预烧、球磨、造粒、压制生坯、烧结；该陶瓷材料的介电性能优异，只需简单改变烧结温度即可对其微波介电性能进行调节；在1400℃烧结时，具备极其优异的介电性能，具体为εr＝24，Q×f＝120,000GHz，τf＝‑46ppm/℃，其品质因数提升了70％，本发明陶瓷材料无需添加烧结助剂，只需要一次预烧，制备工艺简单，有利于降低生产成本。
Niobium-tantalum-zirconium-magnesium microwave dielectric ceramic material and preparation method thereof
铌钽锆镁微波介质陶瓷材料及其制备方法
ZHANG DAINAN (author) / WANG GANG (author) / LIU CHENG (author) / ZHANG HUAIWU (author)
2021-06-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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