On the efficiency of diffusion barrier coating on U-mo fuel particles in dispersion fuels

Ann Leenaers, Bei Ye, Gerard L. Hofmann

    Research outputpeer-review


    The interaction layers (ILs) observed in the SELENIUM plates show irregular appearance and an abrupt growth at the regions with a fission rate ≥ 7x1014 fissions/cm3/s. The formation and growth mechanism of the IL in coated particles was investigated by applying the radiation enhanced diffusion model used for understanding ion beam mixing. IL thickness and volume fraction were calculated using the IL growth correlation for U- Mo/Al dispersion fuels with a pure Al matrix, which is expressed as a function of fission rate and temperature. The calculation results suggest that the IL in coated particles started to form from the beginning of the irradiation and its accelerated growth at high fission rate regions is a temperature effect.
    Original languageEnglish
    Title of host publicationEuropean Research Reactor Conference (RRFM) 2016 : conference proceedings
    Place of PublicationBrussels
    PublisherENS - European Nuclear Society
    Number of pages10
    ISBN (Print)9789295064256
    StatePublished - 14 Mar 2016
    Event2016 - RRFM - European Research Reactor Conference - Berlin
    Duration: 13 Mar 201617 Mar 2016


    Conference2016 - RRFM - European Research Reactor Conference

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