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Low-loss zinc zirconium and niobium series microwave dielectric ceramic prepared by reaction sintering method
The invention discloses low-loss zinc zirconium and niobium series microwave dielectric ceramic prepared by a reaction sintering method and a preparation method of the ow-loss zinc zirconium and niobium series microwave dielectric ceramic. The low-loss zinc zirconium and niobium series microwave dielectric ceramic has the composition of ZnZrNb2O8. Firstly, ZnO, ZrO and Nb2O5 ingredients are proportioned according to a chemical formula; then, ball milling, drying, sieving and granulation are performed; then, the materials are pressed and formed into blank bodies; the blank bodies are sintered at 1125 to 1225 DEG C to obtain the microwave dielectric ceramic; the dielectric constant of the microwave dielectric ceramic is 27.82 to 28.99; the quality factor of the microwave dielectric ceramic is 47600 to 764400GHz; the temperature coefficient of resonance frequency reaches -56.76 to -48.71ppm/DEG C. The powder pre-sintering and secondary ball milling are omitted; the material preparation process is greatly simplified, and the material preparation time is greatly reduced; the cost is reduced; a reaction sintering method of the zinc zirconium and niobium series microwave dielectric ceramic with the advantages of simpler preparation process, wider application field and higher quality coefficient is provided.
Low-loss zinc zirconium and niobium series microwave dielectric ceramic prepared by reaction sintering method
The invention discloses low-loss zinc zirconium and niobium series microwave dielectric ceramic prepared by a reaction sintering method and a preparation method of the ow-loss zinc zirconium and niobium series microwave dielectric ceramic. The low-loss zinc zirconium and niobium series microwave dielectric ceramic has the composition of ZnZrNb2O8. Firstly, ZnO, ZrO and Nb2O5 ingredients are proportioned according to a chemical formula; then, ball milling, drying, sieving and granulation are performed; then, the materials are pressed and formed into blank bodies; the blank bodies are sintered at 1125 to 1225 DEG C to obtain the microwave dielectric ceramic; the dielectric constant of the microwave dielectric ceramic is 27.82 to 28.99; the quality factor of the microwave dielectric ceramic is 47600 to 764400GHz; the temperature coefficient of resonance frequency reaches -56.76 to -48.71ppm/DEG C. The powder pre-sintering and secondary ball milling are omitted; the material preparation process is greatly simplified, and the material preparation time is greatly reduced; the cost is reduced; a reaction sintering method of the zinc zirconium and niobium series microwave dielectric ceramic with the advantages of simpler preparation process, wider application field and higher quality coefficient is provided.
Low-loss zinc zirconium and niobium series microwave dielectric ceramic prepared by reaction sintering method
ZHANG PING (author) / ZHAO YONGGUI (author)
2016-01-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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