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Science 26 February 1999:
Vol. 283. no. 5406, pp. 1237 - 1238
DOI: 10.1126/science.283.5406.1237a
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News of the Week

MATERIALS:
Stress Profiling Gets The Best Out of Glass

Alexander Hellemans

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)