Abstract
Graphene-nickel (G-Ni) matrix composites were fabricated through in-situ growing graphene in bulk nickel matrix using a powder metallurgy method. Sucrose as precursor of graphene was dispersed into nickel powders to grow graphene, avoiding a traditional dispersion process of graphene in metal matrix. Multi-layer graphene was synthesized in-situ in nickel matrix, meanwhile nickel matrix was densified at high temperature. The nickel matrix acts as support and catalyst of graphene, and graphene grow in-situ in nickel matrix serving as reinforcement. This in-situ growth method offers a homogeneous dispersion of graphene and well-contacted interfaces between graphene and nickel matrix, which provides a guarantee for high load transfer from nickel matrix to graphene.
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