以聚硅乙炔为碳化硅前驱体,用二氧化硅微球作为模板制备了反蛋白石结构的碳化硅光子晶体,并对其耐热性进行了初步评价.采用扫描电镜和透射电镜等方法对材料的多孔结构进行了表征,利用X射线衍射对材料进行了物相分析,并运用热重分析对材料的高温抗氧化性进行了初步表征.结果表明,制得的材料规整有序,在空气气氛下900℃时残重为84%。 Silicon carbide photonic crystals with anti-opal structure were prepared by using polysilica as silicon carbide precursor and silicon dioxide microspheres as template, and their heat resistance were preliminarily evaluated. Scanning electron microscopy and transmission electron microscopy Of the porous structure were characterized by X-ray diffraction of the material phase analysis, and the use of thermogravimetric analysis of the high temperature oxidation resistance of the material was initially characterized.The results show that the prepared material orderly, in the air atmosphere Under the residual weight of 900 ℃ 84%.