▎ 摘　　要

Uniaxial tensile tests were carried on graphene (reduced graphene oxide, RGO)-Al laminated composites with Al lamella thicknesses varying from 1m down to 200nm. It was found that there was a transition in plastic deformation mechanism, from a Hall-Petch-typed mechanism at 500 nm and 1m Al lamella thicknesses, to confined layer slip (CLS) of dislocations at the 200 nm Al lamella thickness. Moreover, the strengthening effect of RGO was only demonstrated in composite having 200-nm-thick Al lamellas, which can be rationalized by the enhanced barrier for dislocation de-pinning processes in the CLS mechanism.