An atomizer nozzle includes: a molten metal nozzle extending in a vertical direction and which allows a molten metal to flow downward from a lower end thereof; and a gas nozzle including a chamber having an inner peripheral surface surrounding an outer periphery of the molten metal nozzle, a blow portion which introduces a gas to the chamber toward a circumferential direction of the molten metal nozzle, and a cover extending from the chamber to a position below the lower end of the molten metal nozzle while surrounding the molten metal nozzle, wherein the cover is provided with a tapered inner peripheral surface connected to the inner peripheral surface of the chamber and of which diameter is decreased as close to a lower end portion of the tapered inner peripheral surface.

The present disclosure is directed to methods of preparing substantially spherical metallic alloyed particles, having micron and sub-micron (i.e., nanometer)-scaled dimensions, and the powders so prepared, as well as articles derived from these powders. In particular embodiments, these metallic alloyed particles, comprising rare earth metals, can be prepared in sizes as small 80 nm in diameter with size variances as low as 2-5%.