Effects of MnO-Al_2O_3 on the Grain Growth and High-Temperature Deformation Strain of UO_2 Fuel Pellets
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概要
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The fabrication and high-temperature deformation strain of MnO-Al2O3-doped UO2 pellets were studied. The effects of additive composition and amount on the microstructure evolution of a UO2 pellet were investigated. The compressive creep behaviors of MnO-Al2O3-doped UO2 pellets were examined. The results indicated that a MnO-Al2O3 binary additive can effectively promote the grain growth of UO2 pellets. In addition, the high-temperature deformation strain of the UO2 pellet can be improved significantly with 1,000 ppm 95MnO-5Al2O3 (mol%). The developed MnO-Al2O3-additive-containing UO2 pellets can be a potential candidate for a high-burn-up fuel and a pellet-cladding interaction (PCI) remedy.
- 2010-03-01
著者
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KANG Ki
Korea Atomic Energy Research Institute
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YANG Jae
Korea Atomic Energy Research Institute
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KIM Jong
Korea Atomic Energy Research Institute
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RHEE Young
Korea Atomic Energy Research Institute
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KIM Dong
Korea Atomic Energy Research Institute
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KIM Keon
Korea Atomic Energy Research Institute
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SONG Kun
Korea Atomic Energy Research Institute
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Kim Jong
Korea Advanced Institute Of Science And Technology (kaist)
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Kim Dong
Korea
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