The Swedish nuclear waste program and the long-term corrosion behaviour of copper
2008 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 379, no 1-3, 142-153 p.Article in journal (Refereed) Published
The principal strategy for high-level radioactive waste disposal in Sweden is to enclose the spent fuel in tightly sealed copper canisters that are embedded in bentonite clay about 500 m down in the Swedish bedrock. Besides rock movements, the biggest threat to the canister in the repository is corrosion. 'Nature' has proven that copper can last many million of years under proper conditions, bentonite clay has existed for many million years, and the Fermoscandia bedrock shield is stable. The groundwater may not stay the very same over very long periods considering glaciations, but this will not have dramatic consequences for the canister performance. While nature has shown the way, research refines and verifies. The most important task from a corrosion perspective is to ascertain a proper near-field environment. The background and status of the Swedish nuclear waste program are presented together with information about the long-term corrosion behaviour of copper with focus on the oxic period.
Place, publisher, year, edition, pages
2008. Vol. 379, no 1-3, 142-153 p.
IdentifiersURN: urn:nbn:se:kth:diva-38068DOI: 10.1016/j.jnucmat.2008.06.025ISI: 000260075500020ScopusID: 2-s2.0-51249109477OAI: oai:DiVA.org:kth-38068DiVA: diva2:436197
3rd International Workshop on Long-Term Prediction of Corrosion Damage in Nuclear Waste Systems Location: University Pk, PA Date: MAY 14-18, 2007 2011-08-222011-08-222011-08-22Bibliographically approved