Water reactor fuel cladding tube

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8320515
APP PUB NO 20110002433A1
SERIAL NO

12438555

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Abstract

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A water reactor fuel cladding tube (4) is described. The tube (4) comprises an outer layer (6) of a first zirconium based alloy and has metallurgically bonded thereto an inner layer (7) of a second zirconium based alloy. The inner layer protects (7) the cladding tube (4) against stress corrosion cracking. The second zirconium based alloy comprises tin as an alloying material, and each one of the zirconium based alloys comprises at least 96 percent by weight zirconium. The first zirconium based alloy comprises at least 0.1 percent by weight niobium. A method of manufacturing the cladding tube (4) is also described and comprises the step of co-extruding two tubes of different zirconium based alloys to produce the cladding tube (4).

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Patent Owner(s)

Patent OwnerAddress
WESTINGHOUSE ELECTRIC SWEDEN AB721 63 VÄSTERÅS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dahlback, Mats Vasteras, SE 21 79
Hallstadius, Lars Vasteras, SE 33 130

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