T. Rouxel—contributing editor
Quantitative Analysis of Crack Closure Driven by Laplace Pressure in Silica Glass
Article first published online: 24 MAR 2011
© 2011 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 8, pages 2613–2618, August 2011
How to Cite
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
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.
- Issue published online: 9 AUG 2011
- Article first published online: 24 MAR 2011
- Manuscript No. 28640. Received September 21, 2010; approved February 2, 2011.
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.