三、基体碳多向碳-碳复合材料的基体碳可用三种方法制取,即热固性树脂碳化,沥青高温裂解,碳氢化合物热解沉积。在碳-碳复合材料中基体碳的作用主要是固定增强材料的原始结构和取向;在复合材料受载荷作用时,将应力传递到增强纤维上,使复合材料达到 Third, the matrix carbon multi-directional carbon-carbon composite matrix carbon can be prepared by three methods, namely carbonization of thermosetting resins, pyrolysis of bitumen, hydrocarbon pyrolysis deposition. In the carbon-carbon composite matrix carbon role is mainly fixed reinforcement of the original structure and orientation; in the composite material under load, the stress is transferred to the reinforcing fibers, the composite material to achieve