Materials scientists have long known how to make disordered solids, or glasses, from polymers, organics, and other chemical compounds, but only recently have they learned to do so with metals. Known as bulk metallic glasses, the new materials are prized for their strength and ease of processing. And as illustrated by the examples shown here, they are finding diverse applications—from nanoscale catalytic fibers to jewelry casings. To learn more about bulk metallic glasses and the images in the cover montage, see Jan Schroers’s article.

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