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Surface hydration and nanoindentation of silicate glasses

Tadjiev, D.R. and Hand, R.J. (2010) Surface hydration and nanoindentation of silicate glasses. Journal of Non-Crystalline Solids, 356 (2). pp. 102-108. ISSN 0022-3093

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Abstract

The near-surface mechanical properties of glasses and differences in mechanical behaviour between high and low durability silicate glasses are investigated. Nanoindentation is used to examine the effect of hydration on the near-surface mechanical properties of silicate glasses with varying degrees of chemical durability. It is shown that hydration has little if any effect on high durability glasses even at long immersion times, whereas in low durable glasses hydration reduces the near-surface mechanical properties significantly and the thickness of hydrated layer may exceed the indentation depth. In addition an attempt is made to measure the thickness and mechanical properties of hydrated layer in low durability glasses where influence of the substrate is negligible. (C) 2009 Elsevier B.V. All rights reserved.

Item Type: Article
Copyright, Publisher and Additional Information: © 2010 Elsevier. This is an author produced version of a paper subsequently published in Journal of Non-Crystalline Solids. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Chemical durability; Corrosion; Hydrogen in glass; Hardness; Alkali silicates; Silica; Silicates; Soda-lime-silica; Water in glass
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User: Miss Anthea Tucker
Date Deposited: 16 Feb 2010 11:37
Last Modified: 08 Feb 2013 16:59
Published Version: http://dx.doi.org/10.1016/j.jnoncrysol.2009.10.005...
Status: Published
Publisher: Elsevier
Refereed: Yes
Identification Number: 10.1016/j.jnoncrysol.2009.10.005
URI: http://eprints.whiterose.ac.uk/id/eprint/10367

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