Glass breaks like metal, but at the nanometer scale
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Updated: Sep 27, 2026

Fabricating Nanogaps by Nanoskiving
Published on: May 13, 2013
F Célarié1, S Prades, D Bonamy
1Laboratoire des Verres, UMR CNRS-UM2 5587, Université Montpellier 2, C.C. 69 Place Bataillon, F-34095 Montpellier Cedex 5, France.
Abstract:
We report in situ atomic force microscopy experiments which reveal the presence of nanoscale damage cavities ahead of a stress-corrosion crack tip in glass. Their presence might explain the departure from linear elasticity observed in the vicinity of a crack tip in glass. Such a ductile fracture mechanism, widely observed in the case of metallic materials at the micrometer scale, might be also at the origin of the striking similarity of the morphologies of fracture surfaces of glass and metallic alloys at different length scales.
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