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:
Nov. 19, 2013
Filed:
Aug. 30, 2010
Young-woo Rhee, Daejeon, KR;
Dong-joo Kim, Daejeon, KR;
Kun-woo Song, Daejeon, KR;
Jong-hun Kim, Daejeon, KR;
Keon-sik Kim, Daejeon, KR;
Jae-ho Yang, Daejeon, KR;
Chill-sun Ryu, Daejeon, KR;
Young-Woo Rhee, Daejeon, KR;
Dong-Joo Kim, Daejeon, KR;
Kun-Woo Song, Daejeon, KR;
Jong-Hun Kim, Daejeon, KR;
Keon-Sik Kim, Daejeon, KR;
Jae-Ho Yang, Daejeon, KR;
Ki-Won Kang, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro & Nuclear Power Co., Ltd., Seoul, KR;
Abstract
A method for fabricating a sintered annular nuclear fuel pellet includes molding nuclear fuel powder or granule, an oxide of a fissile element (M), to fabricate an annular nuclear fuel green body. A rod-like shaped structure is inserted into the annular nuclear fuel green body and sintered in a slight oxidizing gas atmosphere such that the oxide of the fissile element has a balanced O/M ratio higher than a desired O/M ratio (oxygen/fissile element) of a final sintered annular nuclear fuel pellet, while being maintained in a cubic phase. The sintered annular nuclear fuel pellet is then reduced in a reductive gas atmosphere so as to have the desired O/M ratio in the state that the rod-like shaped structure is inserted.