Description:  These glass disks are made from alumina, the oxide form of the metal aluminum, which is normally crystalline and opaque rather than amorphous and translucent. A process for making bulk amounts of amorphous alumina yields extra strong glass and ceramic.
Source:  3M Corporation
Story:  Alumina glass made in bulk
TRN September 8/15, 2004
TRN Categories:  Materials Science and Engineering
Form:  Still

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