METHOD AND DEVICE FOR DEPOSITING A NONMETALLIC COATING BY MEANS OF COLD GAS SPRAYING

摘要

A method for depositing a non-metallic, in particular ceramic, coating on a substrate by means of cold gas spraying, which comprises the method steps of: producing a reactive gas flow comprising at least one reactive gas, injecting into the reactive gas flow particles consisting of at least one material required for producing a non-metallic, in particular ceramic, coating material by reaction with the reactive gas, so as to form a mixture flow of reactive gas and particles, producing reactive gas radicals in the mixture flow, and directing the mixture flow comprising reactive gas radicals and particles onto a surface of a substrate to be coated, and so a non-metallic, in particular ceramic, coating is deposited on the surface of the substrate. The reactive gas radicals are generated in the mixture flow by exciting the reactive gas molecules by means of electromagnetic radiation with a suitable frequency and flux density. In addition, there is provided a device for carrying out the method.