METHOD TO PRODUCE NANOPARTICLES AND DEVICE FOR ITS REALISATION Russian patent published in 2017 - IPC B22F9/14 B82Y30/00 C23C4/00 

FIELD: nanotechnology.

SUBSTANCE: method involves the formation of a stream of accelerable metallic microparticles, the melting of metallic microparticles, the flow of the formed liquid microdrops into the region of a cylindrical axisymmetric electrostatic field the axis of which coincides with the axis of the liquid microdroplets flow, charging the liquid microdroplets with a stream of electrons to the state in which their cascade division to metallic nanoparticles and deposition of metal nanoparticles emerging from the region of the cylindrical axisymmetric electrostatic field onto the substrate begin. Melting of metallic microparticles is carried out by means of pulsed laser radiation or stationary infrared radiation. The potential in the region of a cylindrical axisymmetric electrostatic field is provided with increasing from zero at the center of the axisymmetric electrostatic field to a given value ΔU (B) on its radial and axial periphery. A device consisting of a melting unit for metallic microparticles, a unit for charging and dispersing liquid microdroplets, and a unit for depositing metallic nanoparticles on a substrate are also provided.

EFFECT: formation of nanoparticles with a narrow dispersion of sizes is ensured.

4 cl, 1 dwg