High Burn-up Rim Structure. Evidences that Xenon-Depletion, Pore Formation and Grain Subdivision Start at Different Local Burn-Ups.
Since a number of years a program is being conducted at the Hot-Cells of the Institute of Transuranium Elements in co-operation with the industry, in order to characterise the structural changes and the thermal-mechanical behaviour of PWR-fuels irradiated to high burnups. The data acquired up to the present show that the structural changes occurring principally at the pellet-periphery (rim-zone) [1] do not worsen but improve the mechanical properties of the fuel, with an expected better behaviour under pellet-cladding interaction conditions [2,3].
SPINO Jose Luis;
BARON D.;
STALIOS Achilleas;
1998-04-24
JRC16046
https://publications.jrc.ec.europa.eu/repository/handle/JRC16046,
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