Swelling of U(Mo)–Al(Si) dispersion fuel under irradiation – Non-destructive analyses of the LEONIDAS E-FUTURE plates

Sven Van den Berghe, Yves Parthoens, François Charollais, Yeon Soo Kim, Ann Leenaers, Edgar Koonen, Vadim Kuzminov, Patrick Lemoine, Christophe Jarousse, Hervé Guyon, Dan Wachs, Dennis Keiser, Adam Robinson, John Stevens, Gerard Hofman, Leo Sannen

Research outputpeer-review


In the framework of the elimination of High-Enriched Uranium (HEU) from the civil circuit, the search for an appropriate fuel to replace the high-enriched research reactor fuel in those reactors that currently still require it for their operation has led to the development of a U–7 wt.%Mo alloy based dispersion fuel with an Al–Si matrix. The European LEONIDAS program, joining SCKCEN, ILL, CEA and AREVA-CERCA, is aimed at the qualification of such a fuel for the use in high power conditions. The first experiment of the program, designated E-FUTURE, was performed to select the appropriate matrix Si concentration and fuel plate post-production heat treatment parameters for further qualification. It consisted of the irradiation of four distinct (4% and 6% Si, 3 different heat treatments) full size, flat fuel plates in the BR2 reactor. The irradiation conditions were relatively severe: 470 W/cm2 peak BOL power, with a 70% 235U peak burnup.
Original languageEnglish
Pages (from-to)246-258
JournalJournal of Nuclear Materials
Issue number1-3
StatePublished - 4 Jul 2012

Cite this