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

Published online by Cambridge University Press:  20 May 2015

Joelle Reiser ,
Lindsey Neill ,
Jamie Weaver ,
Benjamin Parruzot ,
Christopher Musa ,
James Neeway ,
Joseph Ryan ,
Nikolla Qafoku ,
Stéphane Gin  and
Nathalie A. Wall
Joelle Reiser
Affiliation:
Washington State University, Chemistry Department, Pullman, WA 99164, USA
Lindsey Neill
Affiliation:
Washington State University, Chemistry Department, Pullman, WA 99164, USA
Jamie Weaver
Affiliation:
Washington State University, Chemistry Department, Pullman, WA 99164, USA
Benjamin Parruzot
Affiliation:
Washington State University, Chemistry Department, Pullman, WA 99164, USA
Christopher Musa
Affiliation:
Washington State University, Chemistry Department, Pullman, WA 99164, USA
James Neeway
Affiliation:
Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA 99352, USA
Joseph Ryan
Affiliation:
Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA 99352, USA
Nikolla Qafoku
Affiliation:
Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA 99352, USA
Stéphane Gin
Affiliation:
CEA Marcoule DTCD/SECM, F-30207 Bagnols-sur-Cèze, France
Nathalie A. Wall
Affiliation:
Washington State University, Chemistry Department, Pullman, WA 99164, USA
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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.

Keywords

nuclear materialswaste managementcorrosion
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1744: Symposium EE – Scientific Basis for Nuclear Waste Management XXXVIII , 2015 , pp. 139 - 144
Copyright
Copyright © Materials Research Society 2015 

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References

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