▎ 摘　　要

NOVELTY - Preparation of magnesium alloy-based layered composite material involves dispersing (1) carboxylated graphene in a solvent to obtain graphene dispersion, dispersing carbon nanotubes in the solvent to obtain carbon nanotube dispersion, sequentially spray-depositing (2) the carbon nanotube dispersion, graphene dispersion and carbon nanotube dispersion on the surface of a magnesium foil to obtain a magnesium-based composite sheet comprising an injection layer, crushing the magnesium-based composite sheet into layered elements, placing the layered elements in a mold, and sequentially performing vacuum hot-pressing sintering process and hot extrusion process (3). USE - Preparation of magnesium alloy-based layered composite material (claimed) used in aerospace and electronic product. ADVANTAGE - The magnesium alloy-based layered composite material has excellent mechanical property and electromagnetic shielding performance, and expands the application of the magnesium alloy in the field of electromagnetic shielding. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating preparation of the magnesium alloy-based layered composite material. (Drawing includes non-English language text) 1Dispersion process of carboxylated graphene in solvent, and carbon nanotubes in solvent 2Spray-deposition process 3Process for hot-pressing, sintering and extruding