Microwave dielectric ceramic powder, preparation method thereof, microwave dielectric ceramic and microwave component



The invention discloses microwave dielectric ceramic powder, a preparation method thereof, a microwave dielectric ceramic and a microwave component. The microwave dielectric ceramic powder comprises powder which comprises the following components: barium carbonate (BaCO3), zinc oxide (ZnO), niobium oxide (Nb2O5), cobalt oxide (CoO), and gallium oxide (Ga2O3), wherein the weight ratio of barium carbonate to zinc oxide to niobium oxide to cobalt oxide to gallium oxide is 130 Kg to 5 Kg to 60 Kg to 10 Kg to 0.4 Kg. The microwave dielectric ceramic powder disclosed by the invention can have a higher Q value and a more stable temperature coefficient than an ordinary ceramic raw material with the dielectric constant of 34, and the QxFo [ceramic quality factor] is improved from 75000 to 90000 or more. The invention also discloses a preparation method of the microwave dielectric ceramic powder as well as the microwave dielectric ceramic and the microwave component which are made of the microwave dielectric ceramic powder.




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