Patent ID: 6398125
Filing Date: 2002-06-04
Classification: B05B,B22F,B82Y,C01B,C01G,C01P

Abstract:
A two-stage process for producing nanometer-scaled powders from a metal, said process comprising:(a) operating a first-stage heating and atomizing means to provide a stream of super-heated fine-sized metal liquid droplets into a chamber of a second-stage atomizing means, said second-stage atomizing means comprising a supply of an atomizing fluid medium; (b) operating said second-stage atomizing means by directing said atomizing fluid medium into said chamber to impinge upon said stream of super-heated metal liquid droplets to further break up said metal liquid droplets into substantially nanometer-sized particles; and (c) cooling and/or passivating said particles to form nanometer-scaled solid powders.