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Sohn, Dong-Seong
Innovative Nuclear FUEL(INFUEL)
Research Interests
  • Nuclear fuel design
  • Nuclear fuel
  • Nuclear system
  • Performance analysis

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Fabrication method for UO2 pellets with large grains or a single grain by sintering in air

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Title
Fabrication method for UO2 pellets with large grains or a single grain by sintering in air
Author
Joung, Chang YoungLee, Soo ChulKim, Si HyungKim, Han SooSohn, Dong-Seong
Keywords
URANIUM-DIOXIDE; MICROSTRUCTURE; FUELS
Issue Date
2008-04
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF NUCLEAR MATERIALS, v.375, no.2, pp.209 - 212
Abstract
The effects of a powder treatment, the sintering temperature and the sintering time on the grain growth of UO2 pellets were investigated in air to obtain UO2 pellets with large grains. Air could be used for sintering because an oxidation path above 1803 K does not pass through a two-phase (UO2+x + U3O8-z) region. The UO2 pellets sintered by the CO2-air-CO2-H2 process consisted of a single grain or some large grains in the order of several millimeters.
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DOI
10.1016/j.jnucmat.2008.01.011
ISSN
0022-3115
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