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|Title:||Lattice Contraction in the Rim Zone as Controlled by Recrystallization: Additional Evidence|
|Authors:||SPINO JOSE LUIS; PAPAIOANNOU DIMITRIOS|
|Citation:||JOURNAL OF NUCLEAR MATERIALS vol. 372 p. 416-420|
|Publisher:||ELSEVIER SCIENCE BV|
|Type:||Articles in periodicals and books|
|Abstract:||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.|
|JRC Directorate:||Nuclear Safety and Security|
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