本文对Ti-B法制备的碳—铝合复材料经各种处理后产生的不同程度的界面反应与其纵向抗拉强度的关系进行了研究。碳—铝界面反应主要从三方面影响复合材料的抗拉强度:①界面结合强度;②界面脆性层;⑨纤维损伤。这三者的作用程度与界面反应程度有关。界面反应不严重时,主要是界面结合强度起作用;反应较严重时,界面脆性层的影响增大;反应很严重时,纤维发生严重损伤,对材料的抗拉强度产生很大的影响。 In this paper, the relationship between the different degree of interfacial reaction and longitudinal tensile strength of the carbon-aluminum composite prepared by Ti-B method was studied. Carbon-aluminum interfacial reaction affects the tensile strength of the composites mainly in three aspects: ① interface bonding strength; ② interface brittle layer; ⑨ fiber damage. The role of these three and interface reaction level. When the interface reaction is not serious, the interfacial bonding strength mainly plays an important role. When the reaction is serious, the influence of the interface brittle layer increases. When the reaction is serious, the fiber is severely damaged, which has a great influence on the tensile strength of the material.