Method of producing a coating using a kinetic spray process with large particles and nozzles for the same

摘要

A method of depositing large particles having an average nominal diameter of greater than 106 microns up to 250 microns onto substrates using a kinetic spray system is disclosed. The method utilizes a powder injector tube having a reduced inner diameter and a de Laval type nozzle having an elongated throat to exit end length. The method permits deposition of much larger particles than previously possible.