Preparation method of metal/nanocarbon composite
A composite material, nano-carbon technology, applied in the direction of pressure inorganic powder coating, can solve the problems of poor bonding, poor dispersion of nano-carbon and metal matrix, etc., to increase mechanical properties and thermal conductivity, and the method is simple and feasible. good control effect
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Embodiment 1
[0032] The aluminum billet is rolled to obtain an aluminum foil with a thickness of 5 μm; adding a dispersant, a stabilizer, and water to the carbon nanotubes, stirring, and sanding to obtain a carbon nanotube slurry with a concentration of 5wt%; on the coating machine, Coating the carbon nanotube slurry onto the aluminum foil while controlling the thickness, such as figure 1 As shown, the composite aluminum foil is obtained by drying at 120°C; the aluminum foil coated with carbon nanotubes is laminated through a lamination machine; the laminated aluminum foil is subjected to repeated three-dimensional hot rolling at 500-660°C, including Two-dimensional semi-solid calendering of the vertically stacked foil surface, then lamination, winding, and hot rolling of the composite foil along the axial direction; finally, an aluminum-based / carbon nanotube composite material with uniform distribution of carbon nanotubes in three dimensions is obtained. Such as figure 2 shown.
[0033...
Embodiment 2
[0036] Roll the copper blank to obtain a copper foil with a thickness of 5 μm; add a dispersant, a stabilizer, and water to the carbon nanotubes, stir, and sand to obtain a carbon nanotube slurry with a concentration of 5wt%; on the coating machine , the carbon nanotube slurry is coated on the copper foil, and dried at 120°C; the copper foil coated with carbon nanotubes is laminated through a lamination machine; the laminated copper foil is protected by argon at 1083°C, The semi-solid repeated hot rolling is carried out, and the copper matrix / carbon nanotube composite material with uniform three-dimensional distribution of carbon nanotubes is finally obtained.
Embodiment 3
[0038] The nickel billet is rolled to obtain a nickel foil with a thickness of 5 μm; adding a dispersant, a stabilizer, and water to the carbon nanotubes, stirring, and sanding to obtain a carbon nanotube slurry with a concentration of 5wt%; on the coating machine , the carbon nanotube slurry is coated on the nickel foil, and dried at 120°C; the nickel foil coated with carbon nanotubes is laminated by a stacker; the stacked nickel foil is protected by argon at 1455°C, The semi-solid repeated hot rolling was carried out, and finally a nickel-based / carbon nanotube composite material with uniform three-dimensional distribution of carbon nanotubes was obtained.
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