▎ 摘 要
An imperative bottleneck of ceramic materials with weak dynamic response, associating with rigid co-valent or ionic bonds, has restricted its extensively applications. Despite traditional reinforcements of carbon fibers or whiskers improved their dynamic response, it was still limited to a threshold owing to their heterogeneous dispersion and structural damage. Graphene has been regarded as an alternative reinforcement due to its excellent in-plane mechanical property. Here we developed a scalable process of chemical assembly to fabricate ZrB2-SiC/graphene composites. Graphene offered a shielding effect to arrest crack propagation, and ultimately restrained fracture and fragmentation of composites. Compared with pristine ZrB2-SiC composites, the dynamic strain of ZrB2-SiC/graphene composites (5.2 vol %) depicted a 138% increasing (from 0.095 to 0.226%), and their dynamic stress exhibited a 28% increasing (from 1.50 to 1.92 GPa). This work offers a paradigm for preparing graphene reinforced ceramic composites with strong dynamic response. (C) 2018 Elsevier Ltd. All rights reserved.