In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour

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...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	C. A. Stitt, C. Paraskevoulakos, A. Banos, N. J. Harker, K. R. Hallam, A. Davenport, S. Street, T. B. Scott
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/33198147b3df4136814121ad97e1c44e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:33198147b3df4136814121ad97e1c44e
record_format	dspace
spelling	oai:doaj.org-article:33198147b3df4136814121ad97e1c44e2021-12-02T11:52:23ZIn-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour10.1038/s41598-017-08601-x2045-2322https://doaj.org/article/33198147b3df4136814121ad97e1c44e2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08601-xhttps://doaj.org/toc/2045-2322Abstract 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.C. A. StittC. ParaskevoulakosA. BanosN. J. HarkerK. R. HallamA. DavenportS. StreetT. B. ScottNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q C. A. Stitt C. Paraskevoulakos A. Banos N. J. Harker K. R. Hallam A. Davenport S. Street T. B. Scott In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
description	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.
format	article
author	C. A. Stitt C. Paraskevoulakos A. Banos N. J. Harker K. R. Hallam A. Davenport S. Street T. B. Scott
author_facet	C. A. Stitt C. Paraskevoulakos A. Banos N. J. Harker K. R. Hallam A. Davenport S. Street T. B. Scott
author_sort	C. A. Stitt
title	In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
title_short	In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
title_full	In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
title_fullStr	In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
title_full_unstemmed	In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour
title_sort	in-situ, time resolved monitoring of uranium in bfs:opc grout. part 1: corrosion in water vapour
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/33198147b3df4136814121ad97e1c44e
work_keys_str_mv	AT castitt insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT cparaskevoulakos insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT abanos insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT njharker insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT krhallam insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT adavenport insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT sstreet insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour AT tbscott insitutimeresolvedmonitoringofuraniuminbfsopcgroutpart1corrosioninwatervapour
_version_	1718395038844583936

In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour

Ejemplares similares