INFLUENCE OF FUEL-MATRIX INTERACTION ON THE BREAKAWAY SWELLING OF U-MO DISPERSION FUEL IN AL
HO JIN RYU
YEON SOO KIM
- Publisher: Elsevier
Nuclear Engineering and Technology,
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.