COATING METHODS AND COATED ARTICLES

摘要

One aspect of the present invention includes a method. The method includes combusting a fuel and an oxidant in a combustion chamber of a thermal spray gun to form a combustion stream. The method further includes injecting a liquid and a feedstock material into the combustion stream in the combustion chamber to form an entrained feedstock stream, wherein the feedstock material includes a plurality of cermet particles having a median particle size of less than about 5 microns. The method further includes directing the entrained feedstock stream on a surface of a substrate to form a coating, wherein a temperature of the plurality of cermet particles in the entrained feedstock stream is less than a melting temperature of the plurality of cermet particles. Coated articles are also presented.