METHOD AND APPARATUS FOR ELECTROMAGNETIC POWDER DEPOSITION

摘要

The present invention provides a method for depositing powder particles on a substrate. The method comprises forming a planar plasma armature (100), accelerating the plasma armature, accelerating a column of gas (94) with the plasma armature; and accelerating the powder particles (96) with the column of gas. The invention provides for a railgun (92), comprising first and second conducting rails (110, 112) and first and second insulating rails (114, 116). The insulating and conducting rails form a bore (108) of the railgun. The first and second conducting rails are separated by the insulating rails. A port (124) is adapted to introduce powder particles into the bor (108).