▎ 摘　　要

Molecular dynamics (MD) simulations are used to carry out the coatings of graphene on the melted silicon surfaces by pressing the graphene sheet and annealing the silicon, cooling it from 1800 to 300 K. In these coatings, the graphene well stabilizes its structure and shows the strong adhesion to the silicon. When used in the sliding friction investigations, the graphene-coated silicon surfaces can provide ultralow friction or even superlubricity and the bond between the graphene and the silicon almost steady maintains under the differently investigated conditions. Friction can be significantly improved by adding the carbon atoms between the graphene and the silicon in the coatings.