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:
Dec. 19, 2017
Filed:
Aug. 14, 2015
Applicant:
Westinghouse Electric Company Llc, Cranberry Township, PA (US);
Assignee:
Westinghouse Electric Company LLC, Cranberry Township, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/00 (2006.01); B32B 15/01 (2006.01); G21C 3/07 (2006.01); G21C 3/20 (2006.01); G21C 17/022 (2006.01);
U.S. Cl.
CPC ...
B32B 15/01 (2013.01); G21C 3/07 (2013.01); G21C 3/20 (2013.01); G21C 17/0225 (2013.01); Y02E 30/40 (2013.01);
Abstract
The invention relates to compositions and methods for coating a zirconium alloy cladding of a fuel element for a nuclear water reactor. The composition includes a master alloy including one or more alloying elements selected from chromium, silicon and aluminum, a chemical activator and an inert filler. The alloying element(s) is deposited or are co-deposited on the cladding using a pack cementation process. When the coated zirconium alloy cladding is exposed to and contacted with water in a nuclear reactor, a protective oxide layer can form on the coated surface of the cladding.