▎ 摘 要
For the purpose of relating microscopic interface characteristics to macroscopic dynamic properties in carbon/metal nano-composites, the graphene nano-flakes (GNFs)/Ti composites were fabricated by spark plasma sintering (SPS) and subsequent 723K, 923K, 23K and 1323K hot-rolling. The dynamic properties (similar to 3000s(-1)) and interface failure processes were investigated by introducing Spilt Hopkinson Pressure Bar (SHPB) and stop-ring technology. A superior strength without losing ductility was realized by 1123K as-rolled GNFs/Ti composite. Observations provide new insights into the unique and effective load transfer process of interfacial TiC nano-layer on partially reacted GNFs, which appears to be responsible for the extraordinary dynamic property. (C) 2019 Published by Elsevier Ltd.