Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy

Abstract Fluid-cell Raman spectroscopy is a space and time-resolving application allowing in operando studies of dynamic processes during solution–solid interactions. A currently heavily debated example is the corrosion mechanism of borosilicate glasses, which are the favoured material for the immob...

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Autores principales:	Christoph Lenting, Thorsten Geisler
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/1ce0117007334531b9cba71e738eacf8
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spelling	oai:doaj.org-article:1ce0117007334531b9cba71e738eacf82021-12-02T15:39:47ZCorrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy10.1038/s41529-021-00182-52397-2106https://doaj.org/article/1ce0117007334531b9cba71e738eacf82021-07-01T00:00:00Zhttps://doi.org/10.1038/s41529-021-00182-5https://doaj.org/toc/2397-2106Abstract Fluid-cell Raman spectroscopy is a space and time-resolving application allowing in operando studies of dynamic processes during solution–solid interactions. A currently heavily debated example is the corrosion mechanism of borosilicate glasses, which are the favoured material for the immobilization of high-level nuclear waste. With an upgraded fluid-cell lid design made entirely from the glass sample itself, we present the polymerization of the surface alteration layer over time in an initially acidic environment, including the differentiation between pore and surface-adsorbed water within it. Our results support an interface-coupled dissolution-precipitation model, which opposes traditional ion-exchange models for the corrosion mechanism. A sound description of the corrosion mechanism is essential for reliable numerical models to predict the corrosion rate of nuclear waste glasses during long-term storage in a geological repository.Christoph LentingThorsten GeislerNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ENnpj Materials Degradation, Vol 5, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Christoph Lenting Thorsten Geisler Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy
description	Abstract Fluid-cell Raman spectroscopy is a space and time-resolving application allowing in operando studies of dynamic processes during solution–solid interactions. A currently heavily debated example is the corrosion mechanism of borosilicate glasses, which are the favoured material for the immobilization of high-level nuclear waste. With an upgraded fluid-cell lid design made entirely from the glass sample itself, we present the polymerization of the surface alteration layer over time in an initially acidic environment, including the differentiation between pore and surface-adsorbed water within it. Our results support an interface-coupled dissolution-precipitation model, which opposes traditional ion-exchange models for the corrosion mechanism. A sound description of the corrosion mechanism is essential for reliable numerical models to predict the corrosion rate of nuclear waste glasses during long-term storage in a geological repository.
format	article
author	Christoph Lenting Thorsten Geisler
author_facet	Christoph Lenting Thorsten Geisler
author_sort	Christoph Lenting
title	Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy
title_short	Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy
title_full	Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy
title_fullStr	Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy
title_full_unstemmed	Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy
title_sort	corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell raman spectroscopy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1ce0117007334531b9cba71e738eacf8
work_keys_str_mv	AT christophlenting corrosionofternaryborosilicateglassinacidicsolutionstudiedinoperandobyfluidcellramanspectroscopy AT thorstengeisler corrosionofternaryborosilicateglassinacidicsolutionstudiedinoperandobyfluidcellramanspectroscopy
_version_	1718385857657831424

Corrosion of ternary borosilicate glass in acidic solution studied in operando by fluid-cell Raman spectroscopy

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