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Scientists Invent New Glass With Supreme Toughness (scitechdaily.com)

submitted 1 year ago by [email protected] to c/[email protected]

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Scientists have produced an oxide glass with unprecedented toughness. Under high pressures and temperatures, they succeeded in paracrystallizing an aluminosilicate glass: The resulting crystal-like structures cause the glass to withstand very high stresses and are retained under ambient conditions.

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[–] [email protected] 2 points 1 year ago

The researchers explain the extraordinary strengthening of the glass by the fact that forces acting on the glass from outside, which would normally lead to breakage or internal cracks, are now primarily directed against the paracrystalline structures. They dissolve areas of these structures and transform them back into an amorphous, random state.

If I'm reading this correctly, hitting the glass multiple times will make it as brittle as glass over time.