中文摘要：

对碳纳米管（carbon nanotubes,CNTs）进行化学镀铜,然后采用粉末冶金法制备CNTs含量（质量分数,下同）为0~4%的CNTs增强铜基复合材料（CNTs/Cu）。研究CNTs含量、成形压力以及后续处理工艺对CNTs/Cu复合材料组织及力学性能的影响。结果表明：化学镀铜后的CNTs,CNTs与铜界面结合良好;与Cu粉混合球磨后,镀铜的CNTs嵌入铜基体中,其管状结构没有遭到明显破坏;随CNTs含量增加,CNTs/Cu复合材料的硬度提高,抗拉强度先增大后减小,CNTs的最佳含量（质量分数）为1%;复合粉体的最佳成形压力为1 400 MPa;异步冷轧比复压更有利于提高复合材料的抗拉强度与显微硬度;经过异步冷轧处理的1%CNTs/Cu复合材料的抗拉强度达350.05 MPa,比纯铜提高1倍,显微硬度HV为196.2,比纯铜提高32.03%。

英文摘要：

Carbon naotubes（CNTs） reinforcing copper matrix composites materials（CNTs/Cu） were fabricated by powder metallurgy that the content of CNTs is 0-4%. The effects of CNTs content, molding pressure and further processing on the microstructure and mechanical properties of CNTs/Cu composites were investigated. The results indicate that a copper coating on CNTs can be obtained and the interface bonding is good by electroless plating copper. The CNTs are inlaid into copper matrix and its tubular structure is not damaged obviously after ball milling; The optimum content of CNTs in composite material is 1%. The best molding pressure for composite powder is 1 400 MPa. Asynchronous cold rolling is more conducive to enhance microhardness and tensile strength of the composite materials comparied to re-pressing. The 1% CNTs/Cu composite material is obtained via asynchronous cold rolling, its tensile strength doubles more than that of is pure copper and can reach 350.05 MPa, it＇s microhardness（HV） increases by 32.03% compared with pure copper and reaches 196.2.