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.

通过粉末冶金工艺成功制备了碳化聚合物点/铜（CPD/Cu）复合材料。在性能、微观结构和强化机制方面与还原氧化石墨烯 (RGO)/Cu 和碳纳米管 (CNT)/Cu 复合材料的详尽比较表明，CPD/Cu 复合材料的强度和韧性同时增加，这主要是由于“带壳的纳米CPD球”形式的CPD结构。同时，获得的过渡区可以完美解决Cu基体中碳增强物的分散和界面结合问题。我们的研究结果为碳纳米材料/铜复合材料的制备和开发提供了新的思路。