METHOD FOR THE PRODUCTION OF COMPOSITE MATERIALS OR COATINGS AND SYSTEM FOR IMPLEMENTING IT.

摘要

Method of forming a coating by cold gasodynamic deposition of particules on a substrate consisting in placing in suspension the particles by means of a gas flow, injecting the particle-gas mixture so formed into a main gas flow (carrier gas) having a temperature considerably lower than the melting point of the material(s) constituting the particles, accelerating the resulting two-phase gas stream to supersonic speed, and projecting the supersonic jet on the substrate. The gas temperature is between 300 and 600 K and the ejection speed of the two-phase stream is between Mach 1 and Mach 2. The invention also concerns a system for implementing said method.