High Speed Imaging Study of the Dynamics of Ultrasonic Bubbles at a Liquid-Solid Interface

Abstract:

High speed imaging, including the ultrafast synchrotron X-ray imaging facility at the beamline 32-ID-B of the Advanced Photon Source (APS), was used to study in-situ (1) the dynamics of ultrasonic bubbles inside a water suspension with an acoustic field of varied pressure; and (2) the interaction of a pulsing bubble at a primary dendrite arm tip inside a succinonitrile-1wt% camphor organic transparent alloy. A simple finite element based model was developed to simulate the stress distribution inside the dendrite due to the pulsing of the ultrasonic bubble, providing more evidence for understanding quantitatively the ultrasonic wave induced dendrite fragmentation phenomenon.

• Periodical: Materials Science Forum (Volume 765)
• Pages: 230-234
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.765.230
• Online since: July 2013
• Authors: Dong Yue Tan, Jia Wei Mi
• Keywords: Dendrite Fragmentation, Solidification, Ultrafast Synchrotron X-Ray Imaging, Ultrasonic Treatment

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