▎ 摘　　要

NOVELTY - Three-dimensional nanocarbon material reinforcement of magnesium-based composite material by mixing carbon nanotube and graphene oxide, ultrasonically dispersing in ethanol, adding carbon nanotube solution to one end opening of U-shaped tube, adding graphene oxide solution to other end of U-shaped tube, performing electrophoresis, adding magnesium powder or magnesium alloy powder into ethanol, completely soaking, mechanically stirring, gradually adding dropwise mixed solution, mechanically stirring, filtering, transferring to mold, vacuum-drying, cold-pressing, sintering, and hot-extruding. USE - Method for three-dimensional nanocarbon material reinforcement of magnesium-based composite material. ADVANTAGE - The material has low process cost, simple operation, high interface binding strength and good grain refining effect. DETAILED DESCRIPTION - Three-dimensional nanocarbon material reinforcement of magnesium-based composite material comprises mixing carbon nanotube and graphene oxide, ultrasonically dispersing in ethanol for 1-3 hours to obtain 0.1-3 mg/mL carbon nanotube solution and 0.1-1 mg/mL graphene oxide solution, adding carbon nanotube solution to one end opening of U-shaped tube, adding graphene oxide solution to other end of U-shaped tube, performing electrophoresis by direct current voltage of 30-100 V for 0.5-2 hours to obtain mixed solution, adding 325-mesh magnesium powder or magnesium alloy powder into ethanol, completely soaking, mechanically stirring to obtain slurry, gradually adding dropwise mixed solution, mechanically stirring at speed of 500-1000 revolutions/minute for 1-3 hours, filtering, transferring to mold, vacuum-drying at room temperature, cold-pressing at 600-1000 MPa, sintering under protection of argon gas at 550-650 degrees C for 2-4 hours, and hot-extruding at 380-450 degrees C at ratio of 11: 1.