Abstracts and Available Papers Presented at the Meeting
Microstructure of 50 Year Old SCK●CEN BR1 Research Reactor Fuel
A. Leenaers and S. Van
Nuclear Materials Science Institute
SCK.CEN, Boeretang 200, 2400 Mol, Belgium.
research reactor at SCK.CEN, Mol (Belgium) has a
graphite core matrix loaded with fuel rods consisting of
a natural uranium slug in an aluminum cladding.
Fabrication reports show the application of a so-called
AlSi bonding layer and an U(Al,Si)3
anti-diffusion layer on the natural uranium fuel slug to
limit the interaction between the uranium fuel and
aluminum cladding. The BR1 reactor is in operation since
1956 and still contains its original fuel rods. After
more than 50 years irradiation at low temperature, the
integrity of some of the fuel rods is investigated. The
microstructure of the fuel, bonding and anti-diffusion
layer and cladding is analyzed using optical microscopy
(OM), scanning electron microscopy (SEM) and electron
microprobe analysis (EPMA).
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Contact: Dr. Jordi Roglans-Ribas
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