本项目拟采用高能球磨工艺结合放电等离子烧结技术，制备碳纳米管增强铜基复合材料，并创新性地采用累积叠轧的方法对烧结后的复合材料继续进行大塑性变形，以期获得具有高强度和高导电性的碳纳米管在二维平面沿轧制方向均匀分布的层状碳纳米管/Cu复合材料。分别研究（1）碳纳米管表面化学镀镍工艺、铜粉的颗粒尺寸、球磨及烧结工艺参数等对碳纳米管在基体中的分散性及其与基体间的界面结合强度的影响；（2）累积叠轧后的层状结构对碳纳米管的分布及排列的影响；（3）累积叠轧后界面的空间分布及组织的排列方式对复合材料力学性能及导电性能的影响。通过对微观结构的控制，调控复合材料的力学性能及导电性能，并分别建立微观结构与力学性能及导电性能之间的定量关系，从而揭示复合材料的强化机制与导电机制，为制备具有高强度及高导电性等优良综合性能的碳纳米管/Cu复合材料提供实验证据和理论基础。

High energy ball milling and spark plasma sintering will be used to prepare carbon nano tubes (CNTs) reinforced copper matrix composite, and accumulative roll bonding (ARB) will be innovatively used to severely deform the composite after sintering. The purpose of this project is to obtain lamellar CNTs/Cu composite with CNTs evenly distributed along the rolling direction in a two dimensional plane, which possesses both high strength and high electrical conductivity. Research will focuse on (1) the effects of the electroless deposition of Ni on the surface of CNTs, the particle size of copper powder and the process parameters of ball milling and sintering on the dispersion of CNTs in the matrix and the interfacial bond strength between them; (2) the effects of the lamellar structure after ARB on the distribution and alignment of CNTs; (3) the influences of the spatial distribution of boundaries and the arrangement of microstructure after ARB on the mechanical properties and electrical conductivity of the composite. The mechanical properties and the electrical conductivity of the composite will be adjusted and controlled through the control of microstructure, and the quantitative relationships between the microstructure and the mechanical properties and electrical conductivity will be built, respectively. The results of this project will reveal both the strengthening mechanism and conduction mechanism of the composite, and also provide the experiment evidence and theoretical basis for the preparation of CNTs/Cu with excellent comprehensive performance, such as high strength and high electrical conductivity.