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Comparison of wet air and water radiolysis effects on oxidized Zircaloy corrosion
Guipponi C., Millard-Pinard N., Bérerd N., Serris E., Pijolat M. et al
Dans Scientific Basis for Nuclear Waste Management XXXII - MRS Proceedings - MRS Fall Meeting - Scientific Basis for Nuclear Waste Management XXXII, Boston : États-Unis (2008) - http://hal.in2p3.fr/in2p3-00408548
Physique/Matière Condensée/Science des matériaux
Comparison of wet air and water radiolysis effects on oxidized Zircaloy corrosion
C. Guipponi1, N. Millard-Pinard1, N. Bérerd1, E. Serris, M. Pijolat, V. Peres, V. Wasselin-Trupin, L. Pinard2, L. Roux, P. Leverd
1 :  IPNL - Institut de Physique Nucléaire de Lyon
http://www.ipnl.in2p3.fr/
CNRS : UMR5822 – IN2P3 – Université Claude Bernard - Lyon I (UCBL)
France
2 :  LMA - Laboratoire des matériaux avancés
CNRS : USR3264 – IN2P3 – Université Claude Bernard - Lyon I (UCBL)
Bâtiment 213 VIRGO 22 7 avenue Pierre de Coubertin 69622 VILLEURBANNE CEDEX
France
After spent nuclear fuel processing, the Zircaloy-4 cladding tubes are compacted in a wafer form, placed into a steel container, and then into a concrete over-pack with a view to being disposed of in geological repository. These wastes are mostly composed of activated oxidized metal pieces which also contain traces of fission, activation products and actinides. In the repository, they are exposed to radioactivity in presence of resaturation water. The water radiolysis may accelerate the oxidised metal corrosion processes. By the way, the wastes degradation is mainly due to corrosion process. A fundamental study has thus been defined on the effects of vapour and liquid water radiolysis on Zircaloy-4 corrosion. Various water vapour pressures have been studied with proton irradiation and an aqueous solution simulating resaturated waste water was used with gamma irradiation. The results obtained on samples irradiated or not have been compared to determine the effect of water radiolysis on the stability of the oxide layer.

Communications avec actes
2008
2008
Scientific Basis for Nuclear Waste Management XXXII - MRS Proceedings
internationale
1124
1124-Q09-07

MRS Fall Meeting - Scientific Basis for Nuclear Waste Management XXXII
Boston
États-Unis
01/12/2008
05/12/2008