LAUSR

Abstract An appropriate dispersion of carbon nanotubes (CNTs) in the metal matrix is a prerequisite for their use in improving the mechanical properties of the composites. In this study, layered CNT/Cu composites were fabricated by composite electrodeposition and subsequent spark plasma sintering (SPS). The distribution of CNTs in the composite was adjusted by alternately superimposing composite films deposited under different current density. The ultimate tensile strength of the composite prepared by superposing composite films deposited under a current density of 1 A·dm−2 and 1.5 A·dm−2 reached 370 MPa while maintaining a good fracture elongation of 35.5%. The uniform distribution of CNTs in each layer obtained by composite electrodeposition ensures the high strength of the composites. At the same time, through the coordinated deformation of the layered structure, good ductility was achieved in the CNT/Cu composites. This work highlights the role of structural design and provides a feasible method for obtaining metal matrix composite with good comprehensive mechanical properties.