Title: Physico-chemical characterization of a spent UO2 fuel with respect to its stability under final disposal conditions
Authors: GONZALEZ-ROBLES ErnestoWEGEN DetlefBOHNERT E.PAPAIOANNOU DimitriosMÜLLER NikolausNASYROW RamilKIENZLER B.METZ V.
Citation: Scientific Basis for Nuclear Waste Management XXXVII vol. 1665 p. 283-289
Publisher: Materials Research Society
Publication Year: 2014
JRC N°: JRC85861
ISBN: 9781605116426
URI: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9295294&fileId=S1946427414006563
http://publications.jrc.ec.europa.eu/repository/handle/JRC85861
DOI: 10.1557/opl.2014.656
Type: Articles in periodicals and books
Abstract: Two adjacent fuel rod segments were irradiated in a pressurized water reactor achieving an average burn-up of 50.4 GWd/tHM. A physico-chemical characterisation of the high burn-up fuel rod segments was performed, to determine properties relevant to the stability of the spent nuclear fuel under final disposal conditions. No damage of the cladding was observed by means of visual examination and γ-scanning. The maximal oxide layer thickness was 45 µm. The relative fission gas release was determined to be 8.35%. Finally, a rim thickness of 83.7 µm and a rim porosity of about 20% were derived from characterisation of the cladded pellets.
JRC Directorate:Nuclear Safety and Security

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