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Glass Corrosion in the Presence of Iron-Bearing Materials and Potential Corrosion Suppressors

  • Joelle Reiser (a1), Lindsey Neill (a1), Jamie Weaver (a1), Benjamin Parruzot (a1), Christopher Musa (a1), James Neeway (a2), Joseph Ryan (a2), Nikolla Qafoku (a2), Stéphane Gin (a3) and Nathalie A. Wall (a1)...

Abstract

A complete understanding of radioactive waste glass interactions with near-field materials is essential for appropriate nuclear waste repository performance assessment. In many geologic repository designs, Fe is present both in the natural environment and in the containers that will hold the waste glasses. In this paper we discuss investigations of the alteration of International Simple Glass (ISG) in the presence of Fe0 foil and hematite (Fe2O3). Based on solid analysis, ISG alteration is more pronounced in the presence of Fe0 than with hematite. Additionally, typical glass corrosion is observed for distances of 5 mm between Fe materials and ISG, but incorporation of Fe in the alteration layer is only observed for systems exhibiting full contact between Fe0 material and ISG. Solution analysis results indicate that diatomaceous earth minimizes corrosion to a larger extent than fumed silica does when present with iron and ISG.

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[5] Inagaki, Y., Kikunaga, T., Idemitsu, K., and Arima, T., “Initial Dissolution Rate of the International Simple Glass as a Function of pH and Temperature Measured Using Microchannel Flow-Through Test Method,” Int. J. Appl. Glas. Sci. , vol. 4, no. 4, pp. 317327, Dec. 2013.
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Keywords

Glass Corrosion in the Presence of Iron-Bearing Materials and Potential Corrosion Suppressors

  • Joelle Reiser (a1), Lindsey Neill (a1), Jamie Weaver (a1), Benjamin Parruzot (a1), Christopher Musa (a1), James Neeway (a2), Joseph Ryan (a2), Nikolla Qafoku (a2), Stéphane Gin (a3) and Nathalie A. Wall (a1)...

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