Pallares, Gaël and Grimaldi, Antoine and George, Matthieu and Ponson, Laurent and Ciccotti, Matteo (2011) Quantitative Analysis of Crack Closure Driven by Laplace Pressure in Silica Glass. Journal of the American Ceramic Society, 94 (8). pp. 2613-2618. ISSN 0002-7820 http://resolver.caltech.edu/CaltechAUTHORS:20110923-095624531
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Crack tips in silica glass in moist atmosphere are filled with an equilibrium liquid condensation of a few hundred nanometers length. Not only does this local environment affect the chemistry of slow crack propagation by stress corrosion, but it also has an important mechanical effect due to its highly negative Laplace pressure. The present article presents an original technique for measuring the physical properties of the liquid condensation in terms of the Laplace pressure and critical condensation distance. This is achieved by combining in situ atomic force microscopy measurements of the condensate length and optical determination of the crack closure threshold in a double cleavage drilled compression specimen.
|Additional Information:||© 2011 The American Ceramic Society. Manuscript No. 28640. Received September 21, 2010; approved February 2, 2011. Article first published online: 24 Mar 2011. This work was supported by the ANR Grant "Corcosil" No. ANR-07-BLAN-0261-02. L. Ponson is supported by the European Union through the "Phycracks" Marie Curie fellowship.|
|Official Citation:||Pallares, G., Grimaldi, A., George, M., Ponson, L. and Ciccotti, M. (2011), Quantitative Analysis of Crack Closure Driven by Laplace Pressure in Silica Glass. Journal of the American Ceramic Society, 94: 2613–2618. doi: 10.1111/j.1551-2916.2011.04471.x|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||23 Sep 2011 18:47|
|Last Modified:||23 Sep 2011 18:47|
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