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:
Aug. 04, 2020
Filed:
Jun. 12, 2017
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Kevin Seymour, Marlborough, CT (US);
Christopher W. Strock, Kennebunk, ME (US);
Assignee:
RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 28/00 (2006.01); F01D 25/00 (2006.01); F01D 5/28 (2006.01); F01D 5/34 (2006.01); F01D 11/00 (2006.01); C23C 30/00 (2006.01);
U.S. Cl.
CPC ...
C23C 28/3455 (2013.01); C23C 28/321 (2013.01); C23C 28/3215 (2013.01); C23C 30/00 (2013.01); F01D 5/288 (2013.01); F01D 5/34 (2013.01); F01D 11/001 (2013.01); F01D 25/005 (2013.01); F05D 2230/53 (2013.01); F05D 2230/90 (2013.01); F05D 2300/2112 (2013.01); F05D 2300/2118 (2013.01); F05D 2300/605 (2013.01); F05D 2300/609 (2013.01); F05D 2300/611 (2013.01);
Abstract
A gas turbine engine includes a rotor that has a rim, blades extending radially outwards from the rim, a hub extending radially inwards from the rim, an arm extending axially from the rim, the arm having a radially outer surface, and a coating disposed on the radially outer surface. The coating is zirconia-toughened alumina in which the alumina is a matrix with grains of the zirconia dispersed there through. The grains of zirconia are predominantly a tetragonal crystal structure.