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Title: Q-Glass
Description: The odd microstructure of this aluminum-iron-silicon mixture is seen in this image. The round nodules are the q-glass, not crystalline but with a well-defined chemical composition. The spherical shape indicates that they grow from an initial seed. The nodules use up iron and silicon in the mixture until the surrounding concentration of aluminum gets high enough to start forming aluminum crystals, seen as long bright lines radiating from the nodules. (Color added for clarity.)

-MML

See also http://www.nist.gov/mml/msed/qglass-080613.cfm.
Subjects (names):
Topics/Categories:
Type: Graphic/scientific data
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: Bendersky/NIST
AV Number: 13MML011
Date Created: Unknown
Date Entered: 8/6/2013

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