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In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
- Source :
- Scientific Reports, Stitt, M, Paraskevoulakos, H, Banos, A, Harker, N, Hallam, K, Davenport, A, Street, S & Scott, T 2017, ' In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour ', Scientific Reports, vol. 7, 7999 . https://doi.org/10.1038/s41598-017-08601-x, 'Scientific Reports ', vol: 7, pages: 7999-1-7999-9 (2017), Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017), Scientific Reports, Nature Publishing Group, 2017, 7, pp.7999-1-7999-9. ⟨10.1038/s41598-017-08601-x⟩
- Publication Year :
- 2017
- Publisher :
- Nature Publishing Group, 2017.
-
Abstract
- Uranium encapsulated in grout was exposed to water vapour for extended periods of time. Through synchrotron x-ray powder diffraction and tomography measurements, uranium dioxide was determined the dominant corrosion product over a 50-week time period. The oxide growth rate initiated rapidly, with rates comparable to the U + H2O reaction. Over time, the reaction rate decreased and eventually plateaued to a rate similar to the U + H2O + O2 reaction. This behaviour was not attributed to oxygen ingress, but instead the decreasing permeability of the grout, limiting oxidising species access to the metal surface.
- Subjects :
- Materials science
Science
Uranium dioxide
0211 other engineering and technologies
Oxide
Analytical chemistry
chemistry.chemical_element
Mineralogy
02 engineering and technology
engineering.material
OXIDATION
Oxygen
Article
OXYGEN
Corrosion
MECHANISMS
Reaction rate
chemistry.chemical_compound
PHASES
TEMPERATURES
CEMENT
021105 building & construction
KINETICS
[PHYS]Physics [physics]
Multidisciplinary
Science & Technology
Grout
MIXTURES
Uranium
021001 nanoscience & nanotechnology
Multidisciplinary Sciences
chemistry
RAY PHOTOELECTRON-SPECTROSCOPY
engineering
Medicine
Science & Technology - Other Topics
0210 nano-technology
Water vapor
DIOXIDE
Subjects
Details
- ISSN :
- 20452322
- Database :
- OpenAIRE
- Journal :
- Scientific Reports, Stitt, M, Paraskevoulakos, H, Banos, A, Harker, N, Hallam, K, Davenport, A, Street, S & Scott, T 2017, ' In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour ', Scientific Reports, vol. 7, 7999 . https://doi.org/10.1038/s41598-017-08601-x, 'Scientific Reports ', vol: 7, pages: 7999-1-7999-9 (2017), Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017), Scientific Reports, Nature Publishing Group, 2017, 7, pp.7999-1-7999-9. ⟨10.1038/s41598-017-08601-x⟩
- Accession number :
- edsair.doi.dedup.....69ac070a449789935eea4d79e82d5bf9