▎ 摘　　要

Carbonized polymer dots/copper (CPD/Cu) composites were successfully prepared by a powder metallurgy process. An exhaustive comparison with reduced graphene oxide (RGO)/Cu and carbon nanotubes (CNT)/Cu composites in terms of properties, microstructure and strengthening mechanism reveal the simultaneous increase in strength and toughness of the CPD/Cu composite, which is mainly due to the CPD structure in the form of "nano-CPD ball with shell". Meanwhile, an obtained transition area can perfectly solve the problem of dispersion and interfacial bonding of carbon reinforcements in the Cu matrix. Our results cast a new light on preparation and development of carbon nanomaterial/Cu composites.