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. 18, 2015
Filed:
Jan. 23, 2013
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro and Nuclear Power Co., Ltd., Gyeongsangbuk-do, KR;
Jeong-Yong Park, Daejeon, KR;
Yang-Il Jung, Daejeon, KR;
Hyun Gil Kim, Daejeon, KR;
Byoung-Kwon Choi, Daejeon, KR;
Sang Yoon Park, Daejeon, KR;
Dong Jun Park, Daejeon, KR;
Yang-Hyun Koo, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro and Nuclear Power Co., Ltd., Gyeongsangbuk-do, KR;
Abstract
Disclosed are a zirconium alloy for a nuclear fuel cladding having a good oxidation resistance in a severe reactor operation condition and a method of preparing zirconium alloy nuclear fuel claddings by using thereof. The zirconium alloy includes 1.8 to 2.0 wt % of niobium (Nb); at least one element selected from iron (Fe), chromium (Cr) and copper (Cu); 0.1 to 0.15 wt % of oxygen (O); 0.008 to 0.012 wt % of silicon (Si) and a remaining amount of zirconium (Zr). The amount of Fe is 0.1 to 0.4 wt %, the amount of Cr is 0.05 to 0.2 wt %, and the amount of Cu is 0.03 to 0.2 wt %. A good oxidation resistance of the nuclear fuel cladding may be confirmed under a severe reactor operation condition at an accident condition as well as a normal operating condition of a reactor, thereby improving economic efficiency and safety.