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针对常规化学气相沉积碳／碳复合材料存在的制备周期长和工艺过程繁杂等问题，在大量试验研究的基础上，通过对常规压差法化学气相沉积工艺进行重大改进，设计出了一种新的沉积室和气体快速定向流动装置，并且配合沉积工艺参数的调整，成功地利用这种改进压差法制备出了碳／碳复合材料．利用这种方法不仅使制备周期缩短到改进前的４０％，省去了常规化学气相沉积法中反复进行的中间机械加工和高温热处理工序，而且大幅度降低了制备成本．全尺寸试样（１∶１）惯性动力试验表明，所得制品不仅具有良好的摩擦磨损性能．制动力矩－速度关系曲线平稳和磨损率低等优点，而且刹车盘表面光滑，未发现碎裂和分层等现象，符合飞机等刹车制动的使用要求
Aiming at the problems of long preparation cycle and complicated process in conventional chemical vapor deposition carbon / carbon composites, based on a large number of experimental studies, a new type of chemical vapor deposition Sedimentation chamber and gas rapid directional flow device, and with the adjustment of deposition process parameters, the successful use of this improved pressure difference method to prepare carbon / carbon composites. The method not only shortens the preparation period to 40% before the improvement, eliminates the intermediate machining process and the high-temperature heat treatment process repeatedly performed in the conventional chemical vapor deposition method, and greatly reduces the preparation cost. Full-scale specimen (1: 1) inertial dynamic test shows that the resulting product not only has good friction and wear properties. Brake torque - speed curve smooth and wear rate is low, etc., and the brake disc surface smooth, not found fragmentation and delamination and other phenomena, in line with the requirements of the brake and other aircraft use requirements