Acoustic fields support and cool liquid particles. Levitated by sound energy, liquid drop in acoustic standing-wave field surrounded by acousticically-induced jet streams. Streaming gas cools drow below its freezing point in small fraction of second. Allows new amorphous alloys including "metallic glass" to be formed.
Producing Metallic Glasses With Acoustic Leviation
NASA Tech Briefs ; 7 , 4
01.10.1983
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