Strontium titanium oxides and abradable coatings made therefrom

Details Strontium titanium oxides and abradable coatings made therefrom Strontium titanium oxides and abradable coatings made therefrom

C - Chemistry, Metallurgy

23

C

C23C 24/08 (2006.01) C23C 4/10 (2006.01) C23C 30/00 (2006.01)

Patent

CA 2627870

Abradable coatings are provided. The coatings comprise SrTiO in combination with a ceramic, such as ytrria stabilized zirconia, or SrTiO in combination with an MCrAlX, such as NiCoCrAlY. The abradable coatings are suitable for use in high temperature environments found in gas turbine engines. Also provided are metal articles coated with such coatings, and abradable assemblies.

La présente invention concerne des revêtements abradables. Les revêtements comprennent SrTiO en combinaison avec une céramique, telle que le dioxyde de zirconium stabilisé par l'oxyde d'yttrium, ou SrTiO en combinaison avec un MCrAlX, tel que NiCoCrAlY. Les revêtements abradables sont appropriés pour un usage dans des environnements à hautes températures que l'on rencontre dans des turbomoteurs. La présente invention concerne également des articles métalliques revêtus avec de tels revêtements et des ensembles abradables.

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