COMPOSITE NANOPOWDER AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC B22F9/16 C23C16/44 B82Y30/00 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry and can be used in producing nanopowder by a plasma-chemical method. The composite nanopowder contains particles consisting of a core, which consists of layers of titanium carbonitride and titanium nitrate, and a cladding which consists of a layer of nickel, with the following ratio of layers of the core and cladding, wt %: TiC_xN_y, where 0.28≤x≤0.70; 0.27≤y≤0.63; - 24-66; TiN_0.6 - 30-67; Ni - 4-9. The method involves feeding a precursor containing titanium nickelide and titanium carbide into a reactor-evaporator, treating in a current of nitrogen plasma at plasma flow rate of 60-100 m/s and at precursor feeding rate of 100-140 g/h, subsequent cooling in a current of nitrogen and trapping the evaporation product on a filter surface. The precursor contains said components in the following ratio TiNi:TiC=25-50:50-75.

EFFECT: obtaining nanocomposite powder which enables to obtain harder alloys.

2 cl, 3 dwg, 2 ex