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Glass corrosion

Sharpened interface

The finding of a sharp interface between a chemically attacked surface and the pristine bulk in a borosilicate glass is at odds with the widely held diffusion-based mechanisms of glass durability.

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Figure 1: Atom probe tomography data showing an almost atomically sharp chemical interface between reacted and unreacted glass.
Figure 2: Back-scattered electron image of the sharp interface between unaltered borosilicate glass and the silica-rich altered zone.


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Correspondence to Andrew Putnis.

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Putnis, A. Sharpened interface. Nature Mater 14, 261–262 (2015).

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