Ceramic abradable material with alumina dopant
CA 2549600 C · Owner: Wilson, Scott · Inventors: Wilson, Scott; Nicoll, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides an abradable ceramic seal material comprising yttria (Y2O3) stabilized zirconia (ZrO2) doped with alumina (Al2O3). Furthermore the , invention provides a gas turbine system comprising at least one turbine , blade; an abrasive tip affixed on a top surface of the at least one turbine blade; a shroud housing the at least one turbine blade; and an abradable seal deposited between the at least one turbine blade and the shroud wherein the , abradable seal includes yttria stabilized zirconia that is doped with 0.5 to 1 wt. % of alumina. In addition, the invention provides a method of forming a powder for abradable coatings.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 7, 2006 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.