▎ 摘　　要

NOVELTY - The method involves grinding and mixing graphene powder and metal powder to form mixed powder. The mixed powder grows a graphene film on a surface of the metal powder by chemical vapor deposition in an oxygen-free and 950-1050 degrees Celsius environment to form a metal-based graphene composite material. The metal powder is copper powder and nickel powder. The graphene powder and the metal powder are ground and mixed by a ball mill, the grinding and mixing time of the ball mill is 3-12 hours, and the ball-to-material ratio in the ball mill is 2:1-10:1, and the particle size of the metal powder is ground to 500nm-75mum. USE - Method for preparing metal-based graphene composite material used for metal-based graphene electrical contact (claimed) used in electrical switch such as relay, contactor and circuit breaker. ADVANTAGE - The method adopts the mixed powder of metal powder and graphene powder to be sintered together in chemical vapor deposition equipment, the graphene powder has a large specific surface area, good high temperature stability, and can well separate the metal powder, there is no need to add an anti-sintering agent to the metal powder, which not only prevents the occurrence of sintering and agglomeration of the metal powder, but also does not require subsequent cleaning of the anti-sintering agent. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a metal-based graphene electrical contact. DESCRIPTION OF DRAWING(S) - The drawing shows a Raman spectrogram of copper-based graphene composite powder. (Drawing includes non-English language text)