On alteration rate renewal stage of nuclear waste glass corrosion
File(s)MRSAdv-2019-0127R1.docx (2.31 MB)
Accepted version
Author(s)
Ojovan, Michael I
Type
Journal Article
Abstract
The three generically accepted stages of glass corrosion are reviewed with focus on final stage termed alteration rate renewal (or resumption) stage when the glass may re-start corroding with the rate similar to that at the initial stage. It is emphasized that physical state and physical changes that occur in the near-surface layers can readily lead to an effective increase of leaching rate which is similar to alteration rate renewals. Experimental data on long-term (during few decades) corrosion of radioactive borosilicate glass K26 designed to immobilize high-sodium operational NPP radioactive waste evidence on resumption-like effects of radionuclides (137,134Cs) leaching. The cause of that was however related not to chemical changes in the leaching environment but rather to physical state of glass surface due to formation of small cracks and new pristine glass areas in contact with water.
Date Issued
2020-01-24
Date Acceptance
2020-01-01
Citation
MRS Advances, 2020, 5 (3-4), pp.111-120
ISSN
2059-8521
Publisher
Cambridge University Press
Start Page
111
End Page
120
Journal / Book Title
MRS Advances
Volume
5
Issue
3-4
Copyright Statement
© Materials Research Society 2020. This paper has been accepted for publication and will appear in a revised form, subsequent to peer-review and/or editorial input by Cambridge University Press.
Identifier
https://www.cambridge.org/core/journals/mrs-advances/article/on-alteration-rate-renewal-stage-of-nuclear-waste-glass-corrosion/54C1BAF7AE7C8E4280ED70F71ECEE4B2
Publication Status
Published
Date Publish Online
2020-01-24