This paper is divided into four parts as follows:In the first part, the traditional refractory preparation method was adopted . The effects of SiC content on the microstructure and phase composition of Al2O3-SiC composite were studied by SEM, EDS and XRD.

• 第一，利用传统耐火材料的制备方法，借助扫描电镜(SEM)、能谱仪(EDS)和X射线衍射等手段，研究了不加添加剂时Al_2O_3-SiC材料的显微结构和物相组成。