INFLUENCE OF FUEL-MATRIX INTERACTION ON THE BREAKAWAY SWELLING OF U-MO DISPERSION FUEL IN AL

Article English OPEN
HO JIN RYU ; YEON SOO KIM (2014)
  • Publisher: Elsevier
  • Journal: Nuclear Engineering and Technology, volume 46, issue 2, pages 159-168 (issn: 1738-5733)
  • Related identifiers: doi: 10.5516/NET.07.2014.705
  • Subject: Nuclear engineering. Atomic power | Fission Gas Release | Breakaway Swelling | Fuel-matrix Interaction | Dispersion Fuel | Nuclear Energy and Engineering | U-Mo | TK9001-9401

In order to advance understanding of the breakaway swelling behavior of U-Mo/Al dispersion fuel under a high-power irradiation condition, the effects of fuel-matrix interaction on the fuel performance of U-Mo/Al dispersion fuel were investigated. Fission gas release into large interfacial pores between interaction layers and the Al matrix was analyzed using both mechanistic models and observations of the post-irradiation examination results of U-Mo dispersion fuels. Using the model predictions, advantageous fuel design parameters are recommended to prevent breakaway swelling.
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