AI Article Synopsis
- MightyLev is a new ultrasonic levitation device that effectively stabilizes materials with densities up to 11.3 g cm-3, making it ideal for advanced chemical and structural analysis.
- The device can levitate metals and oxides at high temperatures exceeding 1500 K, especially when combined with mid-infrared laser heating.
- Investigations into heating-related instabilities reveal that jets of hot air can affect sample stability; understanding these interactions will help improve acoustic levitation techniques for processing materials without containers.
Article Abstract
"MightyLev," a new multi-emitter ultrasonic acoustic levitation device capable of extremely stable levitation of materials of density up to at least 11.3 g cm-3, is described. The exceptional stability of medium- to high-density samples levitated in MightyLev makes the device highly suitable for chemical and structural analysis using micro-focused spectroscopic and x-ray scattering techniques. In combination with mid-infrared laser heating, MightyLev is capable of levitating metallic and oxide materials during high-temperature cycling and melting above 1500 K. Instabilities in particle confinement during heating were investigated by directly visualizing the acoustic field using schlieren imaging. The results reveal jets of hot-air directed along the anti-nodes of the acoustic field. The reaction force on the sample from the jet, coupled with the restoring force of the acoustic trap, generates a parametric lateral oscillation of the sample. This result provides valuable insight for future optimization and wider application of acoustic levitation for high-temperature containerless material processing.
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Article Synopsis
- MightyLev is a new ultrasonic levitation device that effectively stabilizes materials with densities up to 11.3 g cm-3, making it ideal for advanced chemical and structural analysis.
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- Investigations into heating-related instabilities reveal that jets of hot air can affect sample stability; understanding these interactions will help improve acoustic levitation techniques for processing materials without containers.
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