TY - JOUR
T1 - WP15 ConCorD state-of-the-art report
T2 - (container corrosion under disposal conditions)
AU - Munoz, Andrés G.
AU - Abdelouas, Abdesselam
AU - Alonso, Ursula
AU - Ana Maria, Fernández
AU - Bernier-Latmani, Rizlan
AU - Cherkouk, Andrea
AU - Gaggiano, Roberto
AU - Hesketh, James
AU - Smart, Nick R.
AU - Padovani, Cristiano
AU - Mijnendonckx, Kristel
AU - Montoya, Vanessa
AU - Idiart, Andrés
AU - Pont, Arnau
AU - Riba, Olga
AU - Finck, Nicolas
AU - Singh, Ashutosh R.
AU - King, Fraser
AU - Diomidis, Nikitas
N1 - Score=10
PY - 2024/7
Y1 - 2024/7
N2 - A sealed container for the geological disposal of spent nuclear fuel and vitrified high-level waste is the only component of a deep geological repository that provides complete containment of radionuclides. As such, attention is focused on its lifetime. The lifetime of the container is influenced by material degradation processes during disposal and is typically of the order of several millennia and, for some container materials, up to one million years. Designing, manufacturing, and predicting the performance of containers over such long periods requires an in-depth understanding of their material properties, fabrication processes, and degradation mechanisms. Scientific and technological progress can improve both the performance of containers and the robustness of lifetime predictions. Optimization of these aspects is of primary importance for many national radioactive waste disposal programs. In this article, the state of the art of complex coupled degradation processes, as well as the optimization potential of novel container materials, is presented. Furthermore, the existing tools allowing the prediction of long-term barrier integrity are discussed.
AB - A sealed container for the geological disposal of spent nuclear fuel and vitrified high-level waste is the only component of a deep geological repository that provides complete containment of radionuclides. As such, attention is focused on its lifetime. The lifetime of the container is influenced by material degradation processes during disposal and is typically of the order of several millennia and, for some container materials, up to one million years. Designing, manufacturing, and predicting the performance of containers over such long periods requires an in-depth understanding of their material properties, fabrication processes, and degradation mechanisms. Scientific and technological progress can improve both the performance of containers and the robustness of lifetime predictions. Optimization of these aspects is of primary importance for many national radioactive waste disposal programs. In this article, the state of the art of complex coupled degradation processes, as well as the optimization potential of novel container materials, is presented. Furthermore, the existing tools allowing the prediction of long-term barrier integrity are discussed.
KW - Nuclear waste containers
KW - Disposal canisters
KW - Corrosion
KW - Radiation
KW - Microbiologically influenced corrosion
KW - Lifetime prediction
U2 - 10.3389/fnuen.2024.1404739
DO - 10.3389/fnuen.2024.1404739
M3 - Article
SN - 2813-3412
VL - 3
JO - Frontiers in Nuclear Engineering
JF - Frontiers in Nuclear Engineering
M1 - 1404739
ER -