▎ 摘　　要

NOVELTY - Preparation of composite material involves preparing magnesium alloy block, graphene powder, absolute ethanol, boron and argon gas, feeding absolute ethanol, quartz crucible and magnesium alloy block, adding magnesium alloy block, cutting to obtain magnesium alloy particles, adding graphene powder, ultrasonically dispersing the graphene powder into absolute ethanol, adding magnesium alloy particles to absolute ethanol to obtain graphene magnesium alloy mixed suspension, drying to obtain a graphene magnesium alloy mixture, performing ball milling to obtain graphite magnesium alloy powder, mixing boron trioxide, graphene magnesium alloy and boron trioxide, passing argon gas, melting magnesium alloy, mixing the magnesium alloy melt and graphene to obtain graphene magnesium alloy mixed slurry, cooling to obtain solid graphene-reinforced magnesium-based composite material and boron trioxide, removing quartz crucible from melting furnace and stripping. USE - Preparation of composite material. ADVANTAGE - The method overcomes the problems of poor surface quality with mechanical properties of magnesium-based composite material, complicated preparation process, high preparation cost and long preparation period of the products. DETAILED DESCRIPTION - Preparation of composite material involves preparing 100 plus minus 1 g magnesium alloy block, 5 plus minus 1 g graphene powder, 1000 plus minus 1 mL absolute ethanol, 50 plus minus 1 g boron and 800000 plus minus 100 cm3 argon gas, feeding absolute ethanol, quartz crucible and magnesium alloy block into the ultrasonically cleaning machine, removing surface impurities of the quartz crucible and magnesium alloy block, adding 50 plus minus 0.001 g of magnesium alloy block, cutting to obtain magnesium alloy particles , adding 0.5 plus minus 0.001 g of graphene powder, ultrasonically dispersing graphene powder into absolute ethanol, adding magnesium alloy particles to absolute ethanol to obtain graphene magnesium alloy mixed suspension, stirring, filtering, drying to obtain a graphene magnesium alloy mixture, performing ball milling to obtain graphite magnesium alloy powder, mixing 25 plus minus 0.001 g boron trioxide, mixing graphene magnesium alloy and boron trioxide into quartz crucible, feeding into melting furnace, passing argon gas into melting furnace, adjusting the power of the smelting furnace, melting boron trioxide, coated around graphene magnesium alloy mixed powder, adjust the smelting furnace to melt magnesium alloy, removing impurities in magnesium alloy, subjecting to ultrasonically vibration, mixing the magnesium alloy melt and graphene in the smelting furnace to disperse graphene in magnesium alloy melt to obtain graphene magnesium alloy mixed slurry, cooling graphene-magnesium alloy mixed slurry and boron trioxide to obtain solid graphene-reinforced magnesium-based composite material and boron trioxide, removing quartz crucible from melting furnace and stripping quartz crucible and boron trioxide.