Lattice Contraction in the Rim Zone as Controlled by Recrystallization: Additional Evidence
Additional micro X-ray diffraction measurements of the lattice constant are described in the rim zone of a BR3-fuel irradiated under
LWR-fuel conditions up to an average burn-up of 68.5 GWd/tM. Though signs of the so-called rim-transformation, with peripheral local
burn-up enhancement, porosity increase and Xe-depletion, were found in the fuel, the traditionally accompanying lattice contraction
verified in standard high burn-up LWR-fuels, was not detected. The absence of this feature is attributed to the lack of pellet-edge recrystallization in the present case, which likely impeded the release of accumulate strains.
SPINO Jose Luis;
PAPAIOANNOU Dimitrios;
2008-03-11
ELSEVIER SCIENCE BV
JRC44010
0022-3115,
www.elsevier.com/locate/jnucmat,
https://publications.jrc.ec.europa.eu/repository/handle/JRC44010,
10.1016/j.jnucmat.2007.03.173,
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