Method and device for depositing a non-metallic coating by means of cold-gas spraying

A method for depositing a ceramic coating on a substrate by cold gas spraying, the method including:

• generating a reactive gas flow comprising at least one reactive gas,
• injecting particles, including at least one material which is required for the generation of the ceramic coating material by reaction with the reactive gas, into the reactive gas flow so as to create a mixture flow of reactive gas and particles,
• passing the mixture flow through a nozzle,
• generating reactive gas radicals in the mixture flow, the reactive gas radicals initiating formation of the ceramic coating from the at least one reactive gas and the particles, using at least one of the following applied to the mixture flow after emerging from the nozzle:
• electromagnetic radiofrequency waves and laser light;
• and
• directing the mixture flow comprising the reactive gas radicals and particles onto an untextured surface of the substrate, so that a ceramic coating is deposited on the surface of the substrate.