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 TiO 2 -Cr 203 ceramic coating on a substrate. The method includes mixing a powder of sprayable nanostructured titanium(IV) oxide (n-TiO 2) and a powder of chromium(ll) oxide (Cr 203 ), thereby obtaining a n-TiO 2 -Cr 20 3 powder blend. The method also includes thermal spraying particles of the n-TiO 2-Cr 20 3 powder blend on the substrate at an in flight particle temperature greater than 23500C and a particle in-flight velocity greater than 350 m/s, thereby obtaining a coated substrate. oC a.C' o.CN4 C) C) C ((WN/Cww 04e JeG