METHOD OF OBTAINING OF NANO-DISPERSED POWDERS Russian patent published in 2015 - IPC B22F9/12 B82B1/00 B22F1/02 

FIELD: metallurgy.

SUBSTANCE: method of obtaining of nano-dispersed nickel-plated powders in a flow of low-temperature nitric plasma includes placing into the batcher of piston type of powdered initial reagent and its feeding by pneumatic current into the evaporator chamber, treatment in the evaporator chamber by low-temperature nitric plasma, refrigeration of the evaporation product in the nitrogen flow in water-cooled hardening chamber located in the bottom part of the evaporator, and its trapping with the filter. The initial reagent is a mix of carbide or vanadium nitride and metal nickel taken in the ratio, by wt %: carbide or vanadium nitride - 50÷75, metal nickel - 25÷50. Meanwhile the plasma temperature in the evaporator chamber is equal to 4000-6000°C, plasma flow rate is 50-55 m/s, and initial reagent is supplied with the flow rate 150-200 g/h.

EFFECT: obtaining of heterogeneous nano-dispersed nickel-plated powders of carbide or vanadium nitride, with the size of particles less than 100 nm.

6 dwg, 2 ex