Title: Stereological Evolution of the RIM Structure in PWR Fuels at Prolonged Irradiation: Dependencies with Burn-up and Temperature
Citation: JOURNAL OF NUCLEAR MATERIALS vol. 354 p. 66-84
Publisher: ELSEVIER B.V.
Publication Year: 2006
JRC N°: JRC34218
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC34218
Type: Articles in periodicals and books
Abstract: 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.
JRC Directorate:Nuclear Safety and Security

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