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Stress Profiling Gets The Best Out of Glass

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Science  26 Feb 1999:
Vol. 283, Issue 5406, pp. 1237-1238
DOI: 10.1126/science.283.5406.1237a

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Try to bend a piece of window glass, and you'll get a vivid demonstration of glass's brittle behavior. Now an international team of researchers has developed a clever way to make glass a little more pliant and predictable. On page 1295 the team describes a chemical toughening process that resulted in glass that both resists fracture better and delivers a warning before it finally fails, in the form of small cracks on its surface.