中文摘要：

选用Ti-6Al-4V（TC4）钛合金为基体,镀铜碳纤维布为增强相来制备钛合金/碳纤维布复合材料。通过放电等离子烧结法（SPS）对镀铜碳纤维布与钛合金薄片进行叠层烧结,制备钛合金/碳纤维布叠层复合材料,并对其界面形貌、微观组织与力学性能进行表征。结果表明：镀铜碳纤维均匀分布在钛合金/碳纤维布复合材料中,Cu Ti,Cu和少量的TiC沿着纤维和基体的界面分布。钛合金/碳纤维布复合材料具有比钛合金略高的塑性,同时屈服强度和抗压强度与钛合金相比有了明显的提高。碳纤维表面电镀铜对复合材料界面有着重要的影响：（1）显着降低钛合金/碳纤维布复合材料的烧结温度;（2）提高了碳纤维和钛基体之间的润湿性,改善了界面结合,从而提高了钛合金/碳纤维布复合材料的力学性能;（3）有效地抑制TiC脆性相的产生,与未镀铜的碳纤布增强钛复合复合材料相比,镀铜碳纤维布/钛合金复合材料具有更好的塑性。

英文摘要：

Using Cu-coated carbon fiber cloth （CFC） as reinforcement and Ti-6Al-4V （TC4） as matrix, the Cu-coated CFC/TC4 composite was fabricated by spark plasma sintering. The interface morphology, phase microstructure, phase distribution and mechanical properties of CFC/TC4 were characterized. Results show that carbon fibers are uniformly distributed in Cu-coated CFC/TC4. CuTi, Cu and trace TiC are distributed along the interface between fibers and matrix. The Cu-coated CFC/TC4 possesses slightly better plasticity than TC4, and the yield strength and compressive strength are obviously enhanced. The electroplated Cu plays important roles： （1） markedly decreasing the sintering temperature of Cu-coated CFC/TC4; （2） significantly improving the wettability and interracial bonding between carbon fibers and TC4 matrix, thus increasing mechanical properties of Cu-coated CFC/TC4; （3） effectively inhibits the excessiving generation of brittle TiC compared with uncoated CFC/TC4 composite, thus maintaining good plasticity of Cu-coated CFC/TC4.