Abstract

Graphene/copper composites were prepared by wet milling and hot-press sintering process. The effect of graphene addition (0.2, 0.6, 1.0, 1.5wt.%) on the microstructure and properties of graphene/copper composites were investigated. The results reveal that graphene (addition of 0.2 and 0.6wt.%) was uniformly distributed in Cu matrix and plays a role in refining grain and enhance the properties. For the 0.6wt.% graphene/copper composite, the relative density, hardness and tensile strength reached largest (respectively 99.4%, 78.5HV and 290.47MPa), its electrical conductivity decreased slightly to 97.5% IACS. While addition reached/beyond 1.0wt.%, graphene agglomerated, the relative density, electrical conductivity and hardness decreased.

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