Abstract: Disclosed herein are nozzle configurations for an abrasive blasting system. The system can comprise multiple hoppers for feeding separate powders streams to a fluid jet. The separate powder streams can be mixed in a frustoconical or conical mixer prior to delivery to the substrate surface. Also disclosed are methods of texturizing the substrate surface by moving the substrate or nozzle(s) during the delivery of dopant(s). Methods for achieving a uniform distribution of dopant are also described. Also disclosed herein are coaxial nozzle configurations having an outer focusing stream to converge and/or mix with an inner particle stream.

Abstract: Disclosed herein is a containment system for a blasting device to prevent release of resulting particulate material into the environment. The system comprises a blasting device having at least one fluid jet nozzle for delivering a stream of particles under pressure toward a substrate positioned on a supporting platform. The containment is a plastic, flexible container having openings penetrated by the at least one fluid jet nozzle and supporting platform. The openings are sealably attached to the blasting device to isolate the interior of the container and the device from the outer environment.