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:
Oct. 02, 1990
Filed:
Nov. 15, 1989
Takanari Okuda, Mito, JP;
Shigeo Nomura, Mito, JP;
Itaru Shibahara, Mito, JP;
Yoshinori Tateishi, Naka, JP;
Susumu Hirano, Amagasaki, JP;
Hiroshi Teranishi, Kobe, JP;
Masayuki Fujiwara, Kobe, JP;
Toshio Nishida, Kobe, JP;
Doryokuro Kakunenryo Kaihatsu Jigyodan, Osaka, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Kobe Steel, Ltd., Osaka, JP;
Abstract
A dispersion strengthened ferritic steel cladding tube for use in a nuclear reactor and having a double-layer structure is provided. The cladding tube comprises a tube body made of a dispersion strengthened ferritic steel having a ceramic dispersed therein and containing 8 to 13% by weight of chromium. The inner surface of the tube body is lined with a ferritic steel containing 18 to 30% by weight of chromium. The cladding tube has not only excellent compatibility with a mixed oxide fuel but also excellent high temperature strength and swelling resistance. A method of producing the cladding tube using powder metallurgy is also provided.