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Si3N4/SiO2 core-shell structure powder material as well as preparation method and application thereof
The invention discloses a Si3N4/SiO2 core-shell structure powder material as well as a preparation method and application thereof, and belongs to the technical field of wave-transparent ceramic, Si3N4 particles are taken as a matrix, KH550 and silicone oil are mixed in equal mass and then added into an acetone solution of the Si3N4 particles, the mixture is obtained through heating and stirring, a lubricant is added dropwise along with heating, a composite solution system is obtained, and the Si3N4/SiO2 core-shell structure powder material is prepared. The preparation method comprises the following steps: preparing a matrix, adding a silicon oil into the matrix, coating the surface of the matrix with KH550 and the silicon oil, centrifuging, carrying out air passing treatment on the obtained compound to obtain an intermediate product, and repeating coating and air passing treatment to obtain the Si3N4/SiO2 core-shell structure powder material. According to the Si3N4/SiO2 core-shell structure powder material provided by the invention, the loss angle tangent ranges from 2.25 * 10 <-3 > to 4.77 * 10 <-3 >, and meanwhile, the dielectric constant of graphene can be adjusted within the range of 2.74-6.55.
本发明公开了一种Si3N4/SiO2核壳结构粉体材料及其制备方法和应用，属于透波陶瓷技术领域，以Si3N4颗粒为基体，将KH550和硅油等质量混合后加入Si3N4颗粒的丙酮溶液中，加热搅拌所得混合物，并伴随滴加润滑剂，得到复合溶液体系，使KH550和硅油包覆在所述基体的表面，离心，将所得复合物进行过风处理，得到中间产物，重复包覆和过风处理，得到所述Si3N4/SiO2核壳结构粉体材料。本发明提供的一种Si3N4/SiO2核壳结构粉体材料，损耗角正切在2.25‑4.77×10‑3之间，同时可在2.74‑6.55范围内调节石墨烯介电常数。
Si3N4/SiO2 core-shell structure powder material as well as preparation method and application thereof
The invention discloses a Si3N4/SiO2 core-shell structure powder material as well as a preparation method and application thereof, and belongs to the technical field of wave-transparent ceramic, Si3N4 particles are taken as a matrix, KH550 and silicone oil are mixed in equal mass and then added into an acetone solution of the Si3N4 particles, the mixture is obtained through heating and stirring, a lubricant is added dropwise along with heating, a composite solution system is obtained, and the Si3N4/SiO2 core-shell structure powder material is prepared. The preparation method comprises the following steps: preparing a matrix, adding a silicon oil into the matrix, coating the surface of the matrix with KH550 and the silicon oil, centrifuging, carrying out air passing treatment on the obtained compound to obtain an intermediate product, and repeating coating and air passing treatment to obtain the Si3N4/SiO2 core-shell structure powder material. According to the Si3N4/SiO2 core-shell structure powder material provided by the invention, the loss angle tangent ranges from 2.25 * 10 <-3 > to 4.77 * 10 <-3 >, and meanwhile, the dielectric constant of graphene can be adjusted within the range of 2.74-6.55.
本发明公开了一种Si3N4/SiO2核壳结构粉体材料及其制备方法和应用，属于透波陶瓷技术领域，以Si3N4颗粒为基体，将KH550和硅油等质量混合后加入Si3N4颗粒的丙酮溶液中，加热搅拌所得混合物，并伴随滴加润滑剂，得到复合溶液体系，使KH550和硅油包覆在所述基体的表面，离心，将所得复合物进行过风处理，得到中间产物，重复包覆和过风处理，得到所述Si3N4/SiO2核壳结构粉体材料。本发明提供的一种Si3N4/SiO2核壳结构粉体材料，损耗角正切在2.25‑4.77×10‑3之间，同时可在2.74‑6.55范围内调节石墨烯介电常数。
Si3N4/SiO2 core-shell structure powder material as well as preparation method and application thereof
一种Si3N4/SiO2核壳结构粉体材料及其制备方法和应用
WANG XINYU (Autor:in) / ZHAO CHENYAO (Autor:in) / GUO RONGZHAO (Autor:in) / QIU JIAHAO (Autor:in) / ZHANG JIAQI (Autor:in) / ZHANG YANXIN (Autor:in)
23.08.2024
Patent
Elektronische Ressource
Chinesisch
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