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Temperature-stable zinc magnesium silicate microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses temperature-stable zinc magnesium silicate microwave dielectric ceramic as well as a preparation method and application thereof, and relates to the technical field of dielectric ceramic. The method comprises the following steps: respectively preparing (Zn0. 4Mg0. 6) 2SiO4 ceramic powder and Ba3 (VO4) 2 ceramic powder; (Zn0. 4Mg0. 6) 2SiO4 and Ba3 (VO4) 2 ceramic powder are subjected to ball milling and mixing, and compound powder is obtained; mixing the compound powder with an adhesive, and performing compression molding to obtain a ceramic green body; and carrying out glue discharging on the ceramic green body, sintering at 1100-1200 DEG C, and carrying out heat preservation for 3-5 hours, so as to obtain the temperature-stable zinc magnesium silicate microwave dielectric ceramic. According to the invention, (Zn0. 4Mg0. 6) 2SiO4 is used as a matrix, Ba3 (VO4) 2 is adopted for doping, and the Zn2SiO4-Mg2SiO4-Ba3 (VO4) 2 microwave dielectric ceramic is synthesized by a traditional solid phase method. The complex phase enables the temperature coefficient of resonance frequency of the microwave dielectric ceramic to be close to zero, and the prepared microwave dielectric ceramic is excellent in dielectric property and low in loss.
本发明公开了一种温度稳定型硅酸锌镁微波介电陶瓷及制备方法和应用，涉及介电陶瓷技术领域。所述方法包括分别制备(Zn0.4Mg0.6)2SiO4和Ba3(VO4)2陶瓷粉末；将(Zn0.4Mg0.6)2SiO4和Ba3(VO4)2陶瓷粉末进行球磨混合，获得化合物粉末；将化合物粉末与粘合剂混合后，进行压制成型，获得陶瓷生坯；将陶瓷生坯经排胶后，于1100～1200℃进行烧结，保温3～5h，即得温度稳定型硅酸锌镁微波介电陶瓷。本发明以(Zn0.4Mg0.6)2SiO4为基体，采用Ba3(VO4)2掺杂，通过传统固相法合成Zn2SiO4‑Mg2SiO4‑Ba3(VO4)2微波介质陶瓷。复相使得微波介质陶瓷谐振频率温度系数近零，制备的微波介质陶瓷介电性能优异，损耗低。
Temperature-stable zinc magnesium silicate microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses temperature-stable zinc magnesium silicate microwave dielectric ceramic as well as a preparation method and application thereof, and relates to the technical field of dielectric ceramic. The method comprises the following steps: respectively preparing (Zn0. 4Mg0. 6) 2SiO4 ceramic powder and Ba3 (VO4) 2 ceramic powder; (Zn0. 4Mg0. 6) 2SiO4 and Ba3 (VO4) 2 ceramic powder are subjected to ball milling and mixing, and compound powder is obtained; mixing the compound powder with an adhesive, and performing compression molding to obtain a ceramic green body; and carrying out glue discharging on the ceramic green body, sintering at 1100-1200 DEG C, and carrying out heat preservation for 3-5 hours, so as to obtain the temperature-stable zinc magnesium silicate microwave dielectric ceramic. According to the invention, (Zn0. 4Mg0. 6) 2SiO4 is used as a matrix, Ba3 (VO4) 2 is adopted for doping, and the Zn2SiO4-Mg2SiO4-Ba3 (VO4) 2 microwave dielectric ceramic is synthesized by a traditional solid phase method. The complex phase enables the temperature coefficient of resonance frequency of the microwave dielectric ceramic to be close to zero, and the prepared microwave dielectric ceramic is excellent in dielectric property and low in loss.
本发明公开了一种温度稳定型硅酸锌镁微波介电陶瓷及制备方法和应用，涉及介电陶瓷技术领域。所述方法包括分别制备(Zn0.4Mg0.6)2SiO4和Ba3(VO4)2陶瓷粉末；将(Zn0.4Mg0.6)2SiO4和Ba3(VO4)2陶瓷粉末进行球磨混合，获得化合物粉末；将化合物粉末与粘合剂混合后，进行压制成型，获得陶瓷生坯；将陶瓷生坯经排胶后，于1100～1200℃进行烧结，保温3～5h，即得温度稳定型硅酸锌镁微波介电陶瓷。本发明以(Zn0.4Mg0.6)2SiO4为基体，采用Ba3(VO4)2掺杂，通过传统固相法合成Zn2SiO4‑Mg2SiO4‑Ba3(VO4)2微波介质陶瓷。复相使得微波介质陶瓷谐振频率温度系数近零，制备的微波介质陶瓷介电性能优异，损耗低。
Temperature-stable zinc magnesium silicate microwave dielectric ceramic as well as preparation method and application thereof
一种温度稳定型硅酸锌镁微波介电陶瓷及制备方法和应用
FU MAOSEN (Autor:in) / ZHANG QINYU (Autor:in) / MA XIAO (Autor:in) / LIU YANGYANG (Autor:in) / HE JIAMING (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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