METHOD FOR OBTAINING LAYERED CERMET Al-AlO-AlC Russian patent published in 2022 - IPC C04B35/65 C22C21/00 B22F1/102 

FIELD: composite materials.

SUBSTANCE: invention relates to the technology of composite materials - cermets and can be used to obtain wear-resistant and tribological products, high-temperature sealing elements, as well as for the manufacture of abrasive tools. To obtain cermet, aluminum powder consisting of lamellar particles coated with stearin (PAP-2) was treated with water by vigorous stirring to obtain a gel-like product, which was dried in air at 20–60°C and pressed. The obtained powder blanks were sintered in vacuum by heating to 630–640°C with an isothermal holding for 15–30 minutes, followed by raising the temperature to 645–655°C with an isothermal holding for 45–90 minutes.

EFFECT: increasing the yield of suitable samples during pressing, increasing the strength and crack resistance of the sintered material. Properties of the obtained material: density - 2.60-2.68 g/cm³, bending strength - 550-650 MPa, crack resistance - 17-20 MPa·m^1/2.

1 cl, 3 tbl, 1 tbl