Wang Dan, Yan An, Liu Yichun, Wu Zhong, Gan Xueping, Li Fengxian, Tao Jingmei, Li Caiju, Yi Jianhong
School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.
School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
Nanomaterials (Basel). 2022 Jul 25;12(15):2548. doi: 10.3390/nano12152548.
Inhomogeneous structures with carbon nanotubes (CNTs), reinforced with Cu composite foams as the reinforcing skeletons (CNTs/CuCu), have been designed to overcome the paradox between strength and ductility or conductivity in copper matrix composites. The interface between CNTs and the copper matrix is usually weak, due to poor wettability and interaction. In this study, nickel nanoparticles are decorated onto CNTs to improve interfacial bonding. The broader interface transition area between CNTs and copper with NiC interfacial products formed, and a combination of improved electrical conductivity (95.6% IACS), tensile strength (364.9 MPa), and elongation (40.6%) was achieved for the Ni-decorated CNTs/CuCu (Ni-CNTs/CuCu). In addition, the strengthening mechanisms are discussed in this study.
以铜复合泡沫为增强骨架（CNTs/CuCu）增强的含碳纳米管（CNTs）的非均匀结构，已被设计用于克服铜基复合材料中强度与延展性或导电性之间的矛盾。由于润湿性和相互作用较差，碳纳米管与铜基体之间的界面通常较弱。在本研究中，将镍纳米颗粒装饰在碳纳米管上以改善界面结合。形成了具有NiC界面产物的碳纳米管与铜之间更宽的界面过渡区域，并且对于装饰镍的碳纳米管/CuCu（Ni-CNTs/CuCu）实现了电导率（95.6%IACS）、抗拉强度（364.9MPa）和伸长率（40.6%）的综合提升。此外，本研究还讨论了强化机制。
