Tools
Tools
BACKHOUSE, Daniel, FISHER, Adam J, NEEWAY, James J, CORKHILL, Claire L, HYATT, Neil C and HAND, Russell J (2018). Corrosion of the International Simple Glass under acidic to hyperalkaline conditions. npj Materials Degradation, 2 (29).
|
PDF
Backhouse CorrosionOfThe(VoR).pdf - Published Version Creative Commons Attribution. Download (1MB) | Preview |
Abstract
Assessment of glass dissolution kinetics, under disposal relevant temperature and pH environments, is required to credibly estimate radionuclide release rates from vitrified radioactive waste. Leaching of the International Simple Glass (ISG) under acidic to hyperalkaline conditions was examined. Forward rate measurements have been obtained using the dynamic leaching SPFT protocol and rate parameters for B, Na and Si in the basic regime; errors in rates predicted using these parameters at high pH and temperature are significant because the fitting uses logarithmic data. Longer term behaviour under hyperalkaline conditions, representative of some disposal environments, was investigated using the PCT and MCC-1 static leaching protocols with Ca(OH)2 solutions for up to 120 days (PCT) and 720 days (MCC-1). In hyperalkaline conditions dissolution was incongruent for all elements and the presence of alternating zirconia-rich and zirconia-poor alteration layers was observed on all leached monoliths, indicating the occurrence of a self-organisation phenomenon during leaching.
| Item Type: | Article |
|---|---|
| Identification Number: | https://doi.org/10.1038/s41529-018-0050-5 |
| SWORD Depositor: | Symplectic Elements |
| Depositing User: | Symplectic Elements |
| Date Deposited: | 23 Nov 2018 11:08 |
| Last Modified: | 18 Mar 2021 07:17 |
| URI: | https://shura.shu.ac.uk/id/eprint/23365 |
Actions (login required)
 |
View Item |
Downloads
Downloads per month over past year