Stereological Evolution of the RIM Structure in PWR Fuels at Prolonged Irradiation: Dependencies with Burn-up and Temperature

SPINO, Jose Luis; STALIOS, A.D.; SANTA, CRUZ Hernan; BARON, P.

doi:10.1016/j.jnucmat.2006.02.095

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Stereological Evolution of the RIM Structure in PWR Fuels at Prolonged Irradiation: Dependencies with Burn-up and Temperature

The stereology of the rim-structure was studied for PWR-fuels up to the ninth irradiation cycle, achieving maximum local burn-ups of 240 GWd/tM and beyond. At intermediate radial positions (0.55 < r/r0 < 0.7), a small increase of the pore and grain size of recrystallized areas was found, which is attributed to the increase of the irradiation temperatures in the outer half-pellet-radius due to deterioration of the thermal conductivity.

SPINO Jose Luis; STALIOS A.D.; SANTA CRUZ Hernan; BARON P.;

2006-08-16

ELSEVIER B.V.

JRC34218

https://publications.jrc.ec.europa.eu/repository/handle/JRC34218,

10.1016/j.jnucmat.2006.02.095,

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