The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2009
Filed:
Sep. 14, 2005
Thomas E. Strangman, Prescott, AZ (US);
Derek Raybould, Denville, NJ (US);
Paul Chipko, Blairstown, NJ (US);
Malak F. Malak, Tempe, AZ (US);
Thomas E. Strangman, Prescott, AZ (US);
Derek Raybould, Denville, NJ (US);
Paul Chipko, Blairstown, NJ (US);
Malak F. Malak, Tempe, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A turbine blade tip and shroud clearance control coating system comprising an abrasive blade tip coating and an abradable shroud coating are provided. The abrasive layer may comprise abrasive particles of cubic zirconia, cubic hafnia or mixtures thereof, and the abradable layer may be a nanolaminate thermal barrier coating that is softer than the abrasive layer. The invention further provides an alternate coating system comprising an abradable blade tip coating and an abrasive shroud coating.