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:
Jun. 23, 2020
Filed:
Mar. 17, 2018
Institute of Materials, China Academy of Engineering Physics, Jiangyou, CN;
Zhenliang Yang, Jiangyou, CN;
Bingqing Li, Jiangyou, CN;
Rui Gao, Jiangyou, CN;
Pengcheng Zhang, Shenzhen, CN;
Jianping Jia, Jiangyou, CN;
Hao Tang, Jiangyou, CN;
Limei Duan, Jiangyou, CN;
Xuxu Liu, Jiangyou, CN;
Yi Zhong, Jiangyou, CN;
Qiqi Huang, Jiangyou, CN;
Zhiyi Wang, Jiangyou, CN;
Tong Liu, Shenzhen, CN;
Hailong Wu, Shenzhen, CN;
Siyu Gao, Shenzhen, CN;
Maozhou Sun, Shenzhen, CN;
Institute of Materials, China Academy of Engineering Physics, Jiangyou, CN;
China Nuclear Power Technology Research Institute Co. Ltd., Shenzhen, CN;
Abstract
The application discloses a preparation method of monocrystal uranium dioxide nuclear fuel pellets, comprising: granulating and pelleting UOpowder to obtain UOpellets; then coating surfaces of the UOpellets with monocrystal growth additive micro powder to form core-shell structure particles; and activated-sintering the core-shell structure particles at high temperature, liquefying the monocrystal growth additive on the surface of the core-shell structure particle at high temperature and then diffusing into UOpellets, dissolving the UOin the liquid monocrystal growth additive, and recrystallizing the UOto form the monocrystal UOnuclear fuel pellets.