▎ 摘　　要

NOVELTY - The probe has a needle tip provided with a spherical substrate and a graphene layer. The graphene layer covers a surface of the spherical substrate, where the graphene layer is made of pure graphene. The graphene layer comprises a multi-layer graphene film. The graphene film is formed with ten layers. Thickness of the graphene film is 1-3 nm. The spherical substrate is made of silicon oxide material. Diameter of the spherical substrate is 5-10 microns. USE - Graphene film ball probe for an atomic force microscope. ADVANTAGE - The probe has better abrasion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for obtaining friction coefficient of an atomic force microscope. DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a graphene film ball probe.