本文以由真空-高压浸渍法制备的C/Al复合材料为研究对象,考察了界面层微结构、纤维涂层对界面结合及界面反应产物形成的影响。结果表明,在C/Al复合材料界面处局部地区分布有层片状、块状Al_4C_3相,沿铝基体(111)面形核,垂根于C轴方向生长。Al_4C_3晶体中存在一种特殊的亚结构,即内部的亚晶会绕C轴转动60°,使其衍射花样上出现双晶体衍射的特征。该相的生长速率符合Z-t~(1/2)线性增长规律,且受碳原子在Al_4C_3中的扩散 In this paper, the C / Al composites prepared by vacuum-high pressure impregnation method were investigated. The effects of interfacial layer microstructure and fiber coating on interfacial bonding and interfacial reaction product formation were investigated. The results show that lamellar and massive Al_4C_3 phases are distributed in the local area of ​​the C / Al composites, and form nuclei along the (111) surface of the aluminum matrix and grow in the C axis. There is a special sub-structure in Al_4C_3 crystal, that is, the internal sub-crystal will rotate 60 ° around the C-axis, resulting in the double crystal diffraction pattern on the diffraction pattern. The growth rate of this phase is in accordance with the Z-t ~ (1/2) linear growth law and is affected by the diffusion of carbon atoms in Al_4C_3