Crystallographic study of Si and ZrN coated U–Mo atomised particles and of their interaction with al under thermal annealing

Tobias Zweifel, Herve Palancher, Ann Leenaers, Anne Bonnin, V. Honkimaki, R. Tucoulou, Sven Van den Berghe, Rainer Jungwirth, Francois Charollais, W. Petry

    Research outputpeer-review


    A new type of high density fuel is needed for the conversion of research and test reactors from high to lower enriched uranium. The most promising one is a dispersion of atomized uranium-molybdenum (U–Mo) particles in an Al matrix. However, during in-pile irradiation the growth of an interaction layer between the U–Mo and the Al matrix strongly limits the fuel’s performance. To improve the in-pile behaviour, the U–Mo particles can be coated with protective layers. The SELENIUM fuel development project consists of the production, irradiation and post-irradiation examination of 2 flat, full-size dispersion fuel plates containing respectively Si and ZrN coated U–Mo atomized powder dispersed in a pure Al matrix. In this paper X-ray diffraction analyses of the Si and ZrN layers after deposition, fuel plate manufacturing and thermal annealing are reported..
    Original languageEnglish
    Pages (from-to)124-132
    JournalJournal of Nuclear Materials
    Issue number1-3
    StatePublished - Sep 2013

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