There are some cracks in C/C composites prepared by TG-CVI.The microstructure of the C/C composites was studied by polarized light microscopy (PLM) and scanning electron microscopy (SEM) .

• 摘要针对热梯度化学气相渗透工艺制备的C/C复合材料样件中出现的裂纹缺陷，采用偏光显微镜及扫描电子显微镜对有裂纹的C/C复合材料样件的微观结构进行了观察。