Mansfield, J.T., Thorpe, C.L. orcid.org/0000-0002-2860-8611, Corkhill, C.L. orcid.org/0000-0002-7488-3219 et al. (2 more authors) (2023) Localised extended (“vermiform”) features formed during glass dissolution. Journal of Non-Crystalline Solids, 608. 122230. ISSN 0022-3093
Abstract
Studies on glass durability are important to our understanding of the likely long term behaviour of vitrified nuclear wastes, natural and archaeological glasses; there has, however, been little in the way of systematic reporting of features associated with localised chemical attack on such glasses. Durability experiments performed in water at 90 °C from 28 d to 672 d on glass monoliths of 5 different compositions: 3 basaltic compositions; an inactive version of the 25 wt% loaded UK mixture Windscale (MW25) glass and the International Simple Glass (ISG) all yielded locally extended or vermiform alteration features. Similar features are seen on all glasses at all dissolution times studied. The number of features and whether they were filled by alteration products or not was dependant on glass composition. The majority of features have quite simple geometries but lesser numbers of more complex morphologies are seen. The location of these features is thought to be most probably linked to residual damage arising from the monolith production providing sites for locally accelerated dissolution. Despite being sites of localised accelerated dissolution the impact of these features on the total surface area is calculated to be limited. Hence the surface area term used to calculate normalised mass losses and normalised loss rates will not be greatly in error as a result of these features.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > School of Chemical, Materials and Biological Engineering The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/N017374/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/S012400/1 Engineering and Physical Sciences Research Council EP/V035215/1 Engineering and Physical Sciences Research Council EP/T011424/1 Engineering and Physical Sciences Research Council EP/S01019X/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 21 Jan 2025 15:41 |
Last Modified: | 21 Jan 2025 15:41 |
Published Version: | https://doi.org/10.1016/j.jnoncrysol.2023.122230 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.jnoncrysol.2023.122230 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:221642 |