Here we show a short video loop of ultrasonic atomization applied to a molten metal alloy, for producing different metal powders. (The complete video is available on our ftp server - details).
The process is similar to atomization of other liquids except for the high temperatures involved. The main challenges (regarding atomizing different metal alloys) were to identify a sonotrode material suitable for direct contact with the molten alloy and to keep the transducer cool by internal water cooling. The results speak for themselves!