C/C多孔体的制备及其对C/C-SiC-Si复合材料的影响

C／C—SiC—Si材料是一种新型的复合材料。本文通过反应熔渗法将液态硅渗入C／C多孔体中得到致密的C／C—SiC—Si复合材料。重点研究了制备C／C多孔体的树脂浸渍裂解法，并测定了在不同浸渍次数下得到的不同的C／C多孔体的体积密度和气孔率，用扫描电镜观察了其形貌，讨论了不同的C／C多孔体对C／C—SiC—Si复合材料最终形貌的影响。

The Preparation and Effect on C/C-SiC-Si Composite of Porous C/C Preform

C/C-SiC-Si is a new kind of composite. We prepared C/C-SiC-Si composite by reaction melt infiltration (RMI) method and emphasized on the study of porous C/C preform prepared by resin impregnation method. The microstructure of different porous C/C preforms were observed by SEM and their porosity and density were mensurated according to Archimedes's law. Also we discussed the effect, which different porous C/C preforms have on the final C/C-SiC-Si composite.