Abstract
The chemical durability of crystalline matrices loaded with actinides can be stronglyreduced when α-decays generate enough disorder to induce a crystalline to amorphoustransition. The alpha decay of actinides in SrTiO3 (α-recoils and α-particles) was simulated using Pb and He irradiation. This study shows that the He-ion annealingprocess that operates in some apatitic structure is negligible in SrTiO3 where thedisorder evolution at room temperature has a strong sigmoid dependence on dose. Thedirect-impact/defect-stimulated model, the cascade quenching/epitaxial recrystallizationmodel, and a direct-impact/cascade-overlap model were used to reproduce the SrTiO3-disorder evolution under Pb-ion irradiation.
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Soulet, S., Chaumont, J., Sabathier, C. et al. Irradiation-disorder Creation in SrTiO3 . Journal of Materials Research 17, 9–13 (2002). https://doi.org/10.1557/JMR.2002.0003
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DOI: https://doi.org/10.1557/JMR.2002.0003