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发明公开
CN108178636A 一种Si3N4/SiC复合吸波陶瓷及其制备方法 有权 质押 转让

一种Si3N4/SiC复合吸波陶瓷及其制备方法
摘要：
本发明涉及一种Si3N4/SiC复合吸波陶瓷及其制备方法，属于吸波透波陶瓷复合材料制备技术领域，该复合吸波陶瓷物相组成为Si3N4、SiC和石墨烯；所述Si3N4、SiC和石墨烯的质量比为95：5：0-0.3。本发明采用石墨烯对Si3N4/SiC复合吸波陶瓷进行改性，得到了性能优良的Si3N4/SiC复合吸波陶瓷材料；本发明相较于其他烧结工艺制备的Si3N4/SiC复合吸波陶瓷的过程中，原材料之间没有发生任何反应；通过严格控制原料配比及烧结制备条件，避免了石墨烯的石墨化。
摘要（英）：

The invention relates to Si3N4/SiC composite wave-absorption ceramic and a preparation method thereof and belongs to the technical field of wave-absorption permeable ceramic composite material preparation. The composite wave-absorption ceramic has the phase constitution of Si3N4, SiC and graphene, wherein the mass ratio of Si3N4 to SiC to graphene is 95:5:(0-0.3). The graphene is adopted to modifythe Si3N4/SiC composite wave-absorption ceramic, and thus a Si3N4/SiC composite wave-absorption ceramic material with excellent properties can be prepared; compared with Si3N4/SiC composite wave-absorption ceramic prepared by using other sintering processes, the Si3N4/SiC composite wave-absorption ceramic is free of reaction of raw materials in the preparation process, and by strictly controllingraw material proportioning and sintering preparation conditions, the graphene is prevented from graphitization.

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