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Magnesium silicate microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses 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: proportioning a silicon source and a magnesium source according to the stoichiometric ratio of the chemical formula MgxSiO2 + x; obtaining an ethanol solution of a silicon source and an ethanol solution of a magnesium source; stirring and aging to form glue; the dry gel is pre-sintered at the temperature of 850-950 DEG C, and MgxSiO2 + x ceramic precursor powder is obtained; and preparing the MgxSiO2 + x microwave dielectric ceramic from the MgxSiO2 + x ceramic precursor powder by adopting a solid phase method. The MgxSiO2 + x silicate is prepared in a non-stoichiometric ratio based on a sol-gel method, the preparation temperature of the MgxSiO2 + x powder is reduced, the sintering temperature of the MgxSiO2 + x microwave dielectric ceramic is reduced, the heat preservation time is shortened, and meanwhile, the energy consumption is reduced.
本发明公开了一种硅酸镁微波介电陶瓷及其制备方法和应用，涉及介电陶瓷技术领域。该方法包括将硅源和镁源，按化学式MgxSiO2+x的化学计量比进行配料；获取硅源的乙醇溶液和镁源的乙醇溶液；经搅拌陈化成胶；将干凝胶于850～950℃进行预烧，得到MgxSiO2+x陶瓷前驱体粉末；将MgxSiO2+x陶瓷前驱体粉末采用固相法制得MgxSiO2+x微波介质陶瓷。本发明基于溶胶凝胶法制备非化学计量比制备MgxSiO2+x硅酸盐，降低MgxSiO2+x粉体的制备温度，以及降低MgxSiO2+x微波介质陶瓷的烧结温度和缩短保温时间，同时减少能源消耗。
Magnesium silicate microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses 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: proportioning a silicon source and a magnesium source according to the stoichiometric ratio of the chemical formula MgxSiO2 + x; obtaining an ethanol solution of a silicon source and an ethanol solution of a magnesium source; stirring and aging to form glue; the dry gel is pre-sintered at the temperature of 850-950 DEG C, and MgxSiO2 + x ceramic precursor powder is obtained; and preparing the MgxSiO2 + x microwave dielectric ceramic from the MgxSiO2 + x ceramic precursor powder by adopting a solid phase method. The MgxSiO2 + x silicate is prepared in a non-stoichiometric ratio based on a sol-gel method, the preparation temperature of the MgxSiO2 + x powder is reduced, the sintering temperature of the MgxSiO2 + x microwave dielectric ceramic is reduced, the heat preservation time is shortened, and meanwhile, the energy consumption is reduced.
本发明公开了一种硅酸镁微波介电陶瓷及其制备方法和应用，涉及介电陶瓷技术领域。该方法包括将硅源和镁源，按化学式MgxSiO2+x的化学计量比进行配料；获取硅源的乙醇溶液和镁源的乙醇溶液；经搅拌陈化成胶；将干凝胶于850～950℃进行预烧，得到MgxSiO2+x陶瓷前驱体粉末；将MgxSiO2+x陶瓷前驱体粉末采用固相法制得MgxSiO2+x微波介质陶瓷。本发明基于溶胶凝胶法制备非化学计量比制备MgxSiO2+x硅酸盐，降低MgxSiO2+x粉体的制备温度，以及降低MgxSiO2+x微波介质陶瓷的烧结温度和缩短保温时间，同时减少能源消耗。
Magnesium silicate microwave dielectric ceramic as well as preparation method and application thereof
一种硅酸镁微波介电陶瓷及其制备方法和应用
ZHANG QINYU (author) / FU MAOSEN (author) / GUO HANJU (author) / LIU YANGYANG (author) / MA XIAO (author) / LI YUJIE (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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