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探索了一种的炭／炭制备方法快速化学液气相渗透致密（ Ｃ Ｌ Ｖ Ｄ），沉积时间３ ｈ 内可获得密度达１．７４ ｇ／ｃｍ ３ 的炭／炭材料。预制体为环形炭毡制件（１６０ ｍ ｍ ×８０ ｍ ｍ ×１０ ｍ ｍ ），以液态低分子有机物（ Ｃ Ｙ Ｈ 和 Ｋ Ｅ Ｅ）作炭源前躯体，将预制体浸泡在液体炭源前驱体中，利用辐射加热，在预制体范围内造成由内而外的温度梯度。研究表明，在９００℃～１ １００℃沉积温度范围内，炭纤维表面最大沉积速率为 ６４ μｍ ／ｈ ，比等温 Ｃ Ｖ Ｉ的沉积速率 （０．１ μｍ ／ｈ～０．２５ μｍ ／ｈ）快２ 个数量级以上。同时，分析并提出了该方法快速致密多孔预制体的机理。
A carbon / carbon preparation method, rapid chemical liquid-phase vapor-phase permeation densification (C L V D), was developed to obtain carbon / carbon materials with a density of 1.74 g / cm 3 within 3 h. The preform is a ring-shaped carbon felt member (160 m × 80 m × 10 m m). The liquid low molecular weight organic matter (C Y H and K E E) is used as a carbon source precursor, and the preform is immersed in a liquid carbon source Precursor heating with radiation creates a temperature gradient from the inside to the outside of the preform. The results show that the maximum deposition rate of carbon fiber surface is 64 μm / h in the range of 900 ℃ -1 100 ℃, which is higher than the deposition rate of isothermal C V I (0.1 μm / h ~ 0.25 μm / h) Fast 2 orders of magnitude or more. At the same time, the mechanism of the method for rapid and compact porous preform is analyzed and proposed.