▎ 摘　　要

NOVELTY - The method involves growing a graphene layer in situ on the surface of the copper powder by plasma-enhanced chemical vapor deposition to obtain graphene coated copper powder particles, paving the copper powder on the quartz sheet, placing in a vacuum chamber, vacuumizing until the pressure is less than 40 Pa, heating and drying, passing in methane, heating and drying, introducing methane to the air pressure recovery, re-pumping the vacuum, introducing methane, heating the vacuum chamber, stopping heating, naturally descending the temperature of the vacuum chamber, reducing the temperature to 300℃, turning on the plasma excitation, setting the excitation power to 150-500 W, using ball mill to perform low-energy ball milling on the graphene to the coated copper powder particles and copper powder, distributing the graphene coated copper powder particles in the copper powder to obtain the mixed powder and spraying the mixed powder on the base material to obtain the final product. USE - The method is useful for preparing graphene coated copper powder particle-reinforced copper-based composite coating. ADVANTAGE - The method enables to prepare copper powder particle enhanced cold spraying copper-based composite coating that has excellent heat, electric, mechanical performance and wear-resistant property.