1994 Volume 67 Issue 12 Pages 817-822
FeCrPC amorphous powders were produced by the two-stage quentching technique consisting of high-pressure nitrogen atomization and melt spinning.
These amorphous powders had a flaky morphology like an ellipsoidal disk, of which thickness and diameter were 1-2 pm and 25-150 pm, respectively. The unique morphology with amorphousness of the Fe-based powders was accounted in this process because of the impact flattening of atomized liquid droplets which had been supercooled below the melting temperature.
These flaky Fe-based amorphous powders had a high luster.The color on the surface of the flaky amorphous powders can be tailored by heat treatment in air. These powders were expected to be used as a pigment in paint.
