Graphene Based Oxide Ceramic Composites with High Mechanical and Functional Performance: from Preparation to Property

It is of great importance to enhance the performance of oxide ceramic composite for fulfilling the increasing requirements from modern society. To this end, graphene is very suitable to be exploited as reinforcement for achieving superior performance in oxide ceramic composites, due to its extraordinary mechanical and electrical properties. In this review, the study of graphene based oxide ceramic composite including the processing, densification, microstructure and properties, based on the reports and researches in the past decade. It can be seen that: (1) the incorporation of graphene can generally improve the strength, fracture toughness and strain tolerance of oxide ceramic composite; (2) for the electrical performance, the graphene/oxide ceramic composites show not only low percolation threshold and high electrical conductivity, but also tunable charge carrier type which can be controlled by the oxygen concentration in oxide matrix. Therefore, it is believed that the graphene based oxide ceramic composites are very promising material for the application requiring both advanced mechanical and functional properties.