MECHANICAL PART WITH A NANOSTRUCTURED TIO2-CR2O3 CERAMIC COATING AND METHOD FOR DEPOSITING A NANOSTRUCTURED TIO2-CR2O3 CERAMIC COATING ON A SUBSTRATE

摘要

There is provided a method for depositing a TiO2-Cr2O3 ceramic coating on asubstrate. The method includes mixing a powder of sprayable nanostructuredtitanium(IV) oxide (n-TiO2) and a powder of chromium(III) oxide (Cr2O3),therebyobtaining a n-TiO2-Cr2O3 powder blend. The method also includes thermalspraying particles of the n-TiO2-Cr2O3 powder blend on the substrate at an in-flightparticle temperature of or greater than 2350°C and a particle in-flightvelocity of or greater than 350 m/s, thereby obtaining a coated substrate.