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本文研究用真空压力浸渍法制造的Ｃ／纯Ａｌ和Ｃ／Ａｌ－Ｃｕ两种复合材料界面微观结构的差异。探求合金化元素Ｃｕ的作用本质。结果表明，Ｃ／Ａｌ－Ｃｕ复合材料界面存在有ＣｕＡｌ＿２、Ａｌ＿４Ｃ＿３、ＡｌＣｕ三种脆性化合物，还发现ＣｕＡｌ＿２对Ａｌ＿４Ｃ＿３的形核影响不明显，但对它的长大有抑制作用。正是由于这种影响，使Ｃ／Ａｌ－Ｃｕ复合材料的耐用温度提高。
In this paper, the differences of the microstructures at the interfaces of C / Al and C / Al-Cu composites fabricated by vacuum pressure impregnation were investigated. To explore the nature of the role of alloying elements Cu. The results show that CuAl_2, Al_4C_3 and AlCu exist brittle compounds at the interface of C / Al-Cu composites. It is also found that CuAl_2 has no obvious effect on the nucleation of Al_4C_3, but inhibits the growth of Al_4C_3. It is because of this effect that the C / Al-Cu composite durability temperature increases.