METHOD FOR PRODUCING A LIGATURE FOR THE PREPARATION OF COMPOSITE MATERIALS BASED ON ALUMINUM OR ALUMINUM ALLOYS (OPTIONS) Russian patent published in 2021 - IPC C22B21/00 C22C21/00 B82Y30/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, it can be used to obtain hardened aluminum materials by casting technologies. The ligature is obtained by placing carbon nanotubes in the cavity of a sealed aluminum shell. Then, by creating a vacuum in the cavity of a sealed aluminum shell and its heating, a part of the adsorbed gases is removed from the surface of the carbon nanotubes to ensure a mass ratio of nanotubes and adsorbed gases of at least 100. The sealed aluminum shell with the carbon nanotubes contained in it is deformed until the carbon nanotubes are embedded in the shell material. Alternatively, a mixture of carbon nanotubes and metal powder is placed in the cavity of a sealed aluminum shell. Then, a vacuum is created in the cavity of a sealed aluminum shell, and it is heated. The sealed aluminum shell is deformed with the mixture contained in it to form a ligature in the form of a billet, in which part of the nanotubes does not have contact with the outer surface of the billet and with pores communicating with the outer surface of the billet.

EFFECT: invention makes it possible to obtain composite materials based on aluminum or aluminum alloys with carbon nanotubes evenly distributed in them.

12 cl, 8 ex