Patent ID: 11873248
Assignee: YANGTZE DELTA REGION INSTITUTE (HUZHOU), UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H | IPC C

Claim 0:
1. A modified NiO—Ta2O5-based microwave dielectric ceramic material sintered at low temperature is characterized in that the general chemical formula of the modified NiO—Ta2O5--based microwave dielectric ceramic material sintered at low temperature is:
(1.587y-0.198xy)ZnO-(2.597y-0.324xy)CuO-(1-x)NiO-(1.855y-0.231xy)B2O3-3xSnO2-(1-x)Ta2O5-(0.284y-0.035xy)V2O5; wherein 0.1≤x≤0.2; 0.03≤y≤0.09; and prepared by solid-phase method; and the crystal type is NiTa2O6 structure;
the sintering temperature of the microwave dielectric ceramic material is 875-950° C., and the microwave dielectric ceramic material is pre-sintered in the atmosphere environment of 850-900° C.; in addition, the dielectric constant is 17˜21, the quality factor Q×f value is 14,000˜23,000 GHz, and the temperature coefficient of resonance frequency is 5˜10 ppm/° C.