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Abstracts and Available Papers Presented at the
2003 International RERTR Meeting

STATUS OF THE BACK-END OPTIONAL ADVANCED RESEARCH REACTOR FUEL DEVELOPMENT IN KOREA

Chang-Kyu Kim, Yoon-Sang Lee, Don-Bae Lee, Seuk-Jin Oh, Ki-Hwan Kim,
Hee-Taek Chae, Jong-Man Park, Dong-Seong Sohn

Korea Atomic Energy Research Institute
150 Dukjin-dong, Yuseong-ku, Daejeon City 305-353, Korea

ABSTRACT

U-Mo fuel development has been carried out for a reactor upgrade of HANARO and the back-end option in Korea. The 2nd irradiation test of the U-Mo dispersion rod fuels is underway in HANARO in order to find the optimum uranium loading density and to investigate the applicability of the monolithic U-Mo ring fuel as well as other parameters such as particle size and cladding surface-treatment. The optical observation using an immersion camera showed that the cladding surfaces of the two U3Si and U-Mo fuels with a high power rate changed in to the darker color, which is not as severe as those of the driving fuels in HANARO. Presumably it would be acceptable. The other fuels were observed as maintaining their initial good conditions. In connection with monolithic U-Mo fuel development, some achievements such as preliminary U-Mo tube production by a continuous casting process and a successful U-Mo foil production using a roll casting process have been obtained. In addition, some investigation on the surface-treatment of multiplayer coating and Zr sputtering coating has showed the possibility of eliminating the problem of a temperature rise due to the corrosion layer formation having quite a low conductivity. The next irradiation test will aim mainly at the qualification of the U-Mo dispersion fuel for HANARO around the end of next year. In the 3rd irradiation fuel buddle, some fuels related to the basic investigation tests for the monolithic U-Mo fuel and surface-treatment for anticorrosion will be loaded.


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Contact:
Mr. Chang-Kyu Kim
Principal Researcher
Korea Atomic Energy Research Institute
150 Deogjin-dong, Yuseong-gu
Korea 
Phone:  +82 (42) 868-2309
Fax:      +82 (42) 861-0318
E-mail:  ckkim2@kaeri.re.kr

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Last modified on July 29, 2008 11:34 +0200