METHOD FOR OBTAINING LAYERED METAL-CERAMIC COMPOSITE MATERIALS Russian patent published in 2021 - IPC B22F3/23 B22F7/02 

FIELD: powder metallurgy.

SUBSTANCE: invention relates to the field of powder metallurgy, in particular to the production of products in the mode of self-propagating high-temperature synthesis (SHS) in combination with high-temperature shear deformation of combustion products under conditions of their free SHS compression. It can be used to produce layered metal-ceramic composite materials used in the military, aviation and metallurgical industries, mechanical engineering and engine building. The billet is made of alternating layers of exothermic mixtures, one layer of which consists of one transition metal selected from a series of titanium, nickel, aluminum, or a mixture of at least one transition metal selected from a series of titanium, nickel, aluminum, and a nonmetal selected from boron and carbon, and the other layer consists of a mixture of at least one transition metal selected from a series of titanium, nickel, aluminum, and a nonmetal selected from boron and carbon. The combustion reaction is initiated by a spiral from the end face or from the surface of the workpiece and is delayed for a specified time. Pressing is carried out when the side walls of the mold are moved in the transverse direction under the action of an axial pressure of 10-100 MPa.

EFFECT: method provides an increase in the mechanical characteristics of the resulting products, as well as the production of layered metal-ceramic composite materials of varying sizes in one mold.

2 cl, 1 dwg, 1 tbl, 4 ex