Abstract
In the framework of the IRIS-TUM irradiation program, several full size, flat dispersion fuel plates containing ground U(Mo) fuel kernels in an aluminum matrix, with and without addition of silicon (2 w%), have been irradiated in the OSIRIS reactor [1]. Microstructural analyses (optical and scanning electron microscopy [2]) on samples from these plates, showed that the irradiation of ground fuel dispersed in an Al-2.1wt%Si matrix to a local maximum burn-up of 88 % 235U LEU equivalent (5.9×1021 f/cm3 U(Mo)), has resulted in a considerable, but yet not break-away swelling of the fuel plate. Comparison to the fuel plate with no Si added up to a burn-up of 66.5 % 235U LEU equivalent (4.4×1021 f/cm3 U(Mo)), again shows the (moderate) positive effect of adding Si, in this case mainly to delay the growth of the U(Mo)-Al-Si interaction layer. Electron probe micro-analyses, provide additional information on the role of Si and the fission gas behavior in ground fuel.
Original language | English |
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Title of host publication | RRFM2010 Transactions |
Place of Publication | Belgium |
State | Published - Mar 2010 |
Event | 2010 - RRFM - 14th ENS Topical Meeting on Research Reactor Fuel Management - European Nuclear Society, Marrakech Duration: 21 Mar 2010 → 25 Mar 2010 http://www.euronuclear.org/meetings/rrfm2010/ |
Conference
Conference | 2010 - RRFM - 14th ENS Topical Meeting on Research Reactor Fuel Management |
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Country/Territory | Morocco |
City | Marrakech |
Period | 2010-03-21 → 2010-03-25 |
Internet address |