Role of nanoparticles in achieving macroscale superlubricity of graphene/nano-SiO2 particle composites

Abstract Recent studies have reported that adding nanoparticles to graphene enables macroscale superlubricity be achieved. This study focuses on the role of in achieving superlubricity. First, because nanoscrolls can formed with as seeds under shear force, applied load (or force) is adjusted manipulate formation and reveal relationship between graphene-nanoscroll superlubricating performance. Second, load-carrying spherical nano-SiO 2 particles during friction process verified by comparison an elaborately designed fullerene possesses a hollow-structured nanoscroll. Results indicate incorporated two roles promoting exhibiting capacity support forces for Finally, (friction coefficient: 0.006–0.008) achieved properly tuned (2.0 N) using simple material system which graphene/nano-SiO particle composite coating slides against steel counterpart ball without decorated diamond-like carbon film. The approach described this could significance engineering.