通过对化学液气相快速致密化这种新型炭／炭复合材料快速制备工艺的初步研究，以ＰＡＮ基炭毡为预制体，低分子液态烃为碳源前驱体，采用电磁感应加热，在９００℃－１１００℃温度内，３小时制备了密度为１．７８ｇ／ｃｍ３的炭／炭复合材料。研究结果表明此工艺较传统工艺的致密化周期缩短了１００倍以上。同时指出这种工艺快速致密化预制体的机制是由于预制体内存在较高温度梯度和碳源扩散过程受控于化学反应动力学。 Based on the preliminary study on the rapid preparation process of this new type of carbon / carbon composite, the PAN-based carbon felt was used as the preform and the low molecular weight liquid hydrocarbon as the carbon source precursor. Electromagnetic induction was used to heat the carbon-carbon composite at 900 ℃ At a temperature of -1100 ° C for 3 hours, a carbon / carbon composite having a density of 1.78 g / cm3 was prepared. The results show that this process is more than 100 times shorter than the densification cycle of the traditional process. At the same time, it is pointed out that the mechanism of rapid densification of the preform by this process is due to the existence of a higher temperature gradient in the preform and the controlled diffusion of carbon source controlled by chemical reaction kinetics.