Enhancement of the thermal conductivity of Cu Matrix by addition of RGO

Graphene have been condered as an ideal reinforcement material due to its fascinating physical and mechanical properties. In this study, the graphene reinforced the Cu matrix nanocomposites with excellent thermal conductivity have been successfully fabricated by hot pressing sintering of RGO/Cu nanocomposites powders which were prepared via situ chemical reduction method using NaBH4 as reducing agent. The reduced graphene oxide and prepared nanocomposites were characterized by X-ray diffraction (XRD), Fieldemission scanning electron microscope (FESEM). The FESEM shows that the graphene homogeneous dispersion on the nanocomposites powders. Furthermore, the thermal conductivity of graphene reinforced Cu matrix has been improved compare with the Cu matrix without addition graphene.