METHOD OF MAKING COMPOSITE MATERIAL Russian patent published in 2014 - IPC C22C1/05 B22F3/20 C22C21/00 

FIELD: metallurgy.

SUBSTANCE: hardening agent powder is prepared by mechanical doping of the mix of nanopowders of boron-bearing material in amount of 2-25 wt % of the mix for making composite and tungsten in amount of 1-30 wt % of said mix obtain composite powder mix of uniformity of 75-85 %. Powder of aluminium or its alloys is added to produced mix in amount of 100 wt % of aforesaid mix to go on with mechanical doping for 0.5-5 hours at the rate of 100-1000 rom. Obtained mix is degassed at 0.6-0.8 of aluminium fusion point, sintered and subjected to hot extrusion through die hole at 3000-15000 MPa at the press of capacity not lower than 500 t.

EFFECT: higher physical and mechanical properties, better operating characteristics, higher nuclear and ecological safety.

1 dwg, 3 ex