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, 2015
Filed:
Jan. 22, 2013
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro and Nuclear Power Co., Ltd., Gyeongsangbuk-do, KR;
Jeong-Yong Park, Daejeon, KR;
Hyun Gil Kim, Daejeon, KR;
Byoung-Kwon Choi, Daejeon, KR;
Sang Yoon Park, Daejeon, KR;
Yang-Il Jung, 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 reactor accident conditions, a zirconium alloy nuclear fuel cladding prepared by using thereof and a method of preparing the same. The zirconium alloy includes 1.0 to 1.2 wt % of niobium (Nb); at least one element selected from tin (Sn), iron (Fe) and chromium (Cr); 0.02 to 0.1 wt % of 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 Sn is 0.1 to 0.3 wt %, the amount of Fe is 0.3 to 0.8 wt %, and the amount of Cr is 0.1 to 0.3 wt %. A good oxidation resistance of the nuclear fuel cladding may be confirmed under accident conditions as well as normal operating conditions of a reactor, thereby improving economic efficiency and safety.