Method of production of ultrafine particles.

摘要

A method of making ultrafine particles, comprising: (a) introducing a solid precursor comprising an oxide and / or a carbide into a plasma chamber, (b) heating the precursor in the plasma chamber, producing a stream of gaseous product; (C) passing the gaseous product stream through a member of convergence, and then (d) contacting the gaseous product stream with a plurality of cooling flows are injected into the plasma chamber through a plurality of injection ports cooling flows, wherein the cooling flows are injected at flow rates and injection angles that produce the shock of current cooling each other within the gaseous product stream, which occur ultrafine particles, and (e) injecting a stream of sheath upstream of the converging member.