Helium bubbles in UO $_{2}$

Matsunaga, Junji*; Kashibe, Shinji*; Serizawa, Hiroyuki ; Nakajima, Kunihisa ; Iwai, Takashi; Haga, Yoshinori ; Oishi, Yuji*; Yamanaka, Shinsuke*

Helium generated in MOX fuel increases inner pressure of fuel rod and helium could also form additional bubbles in fuel pellet by the combination of radiation defects and high temperature. Therefore it is important to understand the behavior of helium in oxide fuel for reliable operation of MOX fuels. In the present study, the helium infusion treatments in high temperature and high pressure of helium were performed for both sintered polycrystalline UO $_{2}$ fragments and hyperstoichiometric monograin UO $_{2+x}$ particles fabricated by the transportation method. It was suggested that the difference in the composition of UO $_{2}$ is closely related with the condition of the formation of the negative crystal.

Language	:	English
Journal	:
Volume	:
Number	:
Pages	:
Publication Year/Month	:
Meeting title	:	1st Asian Nuclear Fuel Conference (ANFC 2012)
Held date	:	2012/03
Location (city)	:	Suita
Location (country)	:	Japan
Patent information	:
PDF	:
Paper URL	:
DOI for research data	:
Keywords	:	no keyword
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	大阪大学; 日本核燃料開発

Accesses	:	- Accesses
Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:
Altmetrics	:

Registration No. : BB20113243
JAEA Abstracts No. :
Paper Submission No. :

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.