Evidence of deep water penetration in silica during stress corrosion fracture

Details Evidence of deep water penetration in silica during stress corrosion fracture Evidence of deep water penetration in silica during stress corrosion fracture

2010-12-01

arxiv.org/abs/1012.0295v1

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

We measure the thickness of the heavy water layer trapped under the stress corrosion fracture surface of silica using neutron reflectivity experiments. We show that the penetration depth is 65-85 \aa ngstr\"{o}ms, suggesting the presence of a damaged zone of $\approx$ 100 \aa ngstr\"{o}ms extending ahead of the crack tip during its propagation. This estimate of the size of the damaged zone is compatible with other recent results.

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