Metallic Glass Offers High Strength, Toughness

Popular Science (1/11, Boyle) reports, “Materials scientists in California have made a special metallic glass with a strength and toughness” that is reportedly “greater than any known material” and uses “a recipe that could yield a new method for materials fabrication.” The material is “a microalloy made of palladium” and “has a chemical structure that counteracts the inherent brittleness of glass but maintains its strength. It’s not very dense and it is more lightweight than steel, with comparable heft to an aluminum or titanium alloy.” Materials scientist and co-author Robert O. Ritchie of Lawrence Berkeley National Laboratory said, “It has probably the best combination of strength and toughness that has ever been achieved. … It’s not the strongest material ever made, but it’s certainly one of the best with a combination of strength and toughness.”

Reposted from the 1/12/11 ASEE First Bell.

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