COMPOSITE NANOPOWDER BASED ON TITANIUM CARBONITRIDE AND METHOD FOR ITS PRODUCTION Russian patent published in 2022 - IPC B22F1/18 B22F9/16 B82Y30/00 B82Y40/00 

FIELD: powder metallurgy.

SUBSTANCE: invention relates to powder metallurgy, in particular to plasma-chemical methods for producing nanodispersed powders, which can be used to prepare a charge for producing hard alloys. The composite nanopowder includes particles, each of which contains, wt.%: 64.49 molybdenum alloyed titanium carbonitride Ti_0.8Mo_0.2C_0.5N_0.5, 1.3 molybdenum, 14.16 nickel, and a total of 20.05 titanium and nickel oxides. The particle consists of a Ti_0.8Mo_0.2C_0.5N_0.5 core and a shell containing a nickel layer and a molybdenum layer located between the nickel layer and the core. The initial mixture containing, wt.%: titanium carbonitride 74.0, molybdenum 6.5, nickel 19.5, is introduced into the evaporator chamber at a rate of 150–180 g/h and treated in a nitrogen plasma flow at 3000–4000°C and plasma flow rate of 45-50 m/s, followed by cooling in a nitrogen flow and trapping the evaporation product on the filter surface.

EFFECT: obtaining a homogeneous nanodispersed composite powder, as well as lowering the sintering temperature and reducing the time for obtaining an alloy from it.

2 cl, 2 ex