Journal
CORROSION SCIENCE
Volume 76, Issue -, Pages 403-414Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.07.014
Keywords
Glass; Iron; TEM; Raman spectroscopy; Interfaces
Funding
- French National Radioactive Waste Management Agency (ANDRA)
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Under anoxic conditions, the presence of iron is expected to enhance the alteration rate of silicate glass. In order to understand the underlying mechanisms, experiments were performed on a synthetic glass simulating archeological artifacts to study the effect of metallic iron and siderite in a clay-type groundwater. Characterization of the altered samples at different durations reveals different impacts of iron on glass alteration. In contact with siderite, the sorption of the released silicon maintains temporarily a high alteration rate which eventually drops. With metallic iron, glass is altered near the maximum dissolution rate throughout the experiment because of Fe-silicate precipitation. (C) 2013 Elsevier Ltd. All rights reserved.
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