Imaging fast processes in liquid metal foams and semi-solid alloys using synchrotron radioscopy with spatio-temporal micro-resolution

S. Zabler, A. Rack, F. García-Moreno, A. Ershov, T. Baumbach, J. Banhart

    Research output: Chapter in Book/Report/Conference proceedingChapter

    2 Citations (Scopus)

    Abstract

    New X-ray sources of unmatched brilliance, like the superconducting undulator device at ESRF high-energy beamline ID15A, allow for micro-radioscopic investigations with time-resolution up to the micro-second range. Here we present first results of two recent in situ experiments: the visualization of semi-solid metal flow at an acquisition speed 500 frames/s (fps) and the collapse of pore walls in liquid metallic foams investigated at 40,000 fps. Both applications reveal important qualitative and quantitative facts about the dynamic processes in liquid and/or semi-solid metals which were inaccessible until now because of either the limited spatial and/or the limited time-resolution of conventional X-ray devices. Thus, semi-solid slurry is observed to break into small particle clusters when injected at high speed. The event of cell wall collapse in metal foams is found to take ~1-2 ms time, indicating that the dynamics of this system is inertia controlled.

    Original languageEnglish
    Title of host publicationIn-situ Studies with Photons, Neutrons and Electrons Scattering
    PublisherSpringer Berlin Heidelberg
    Pages149-158
    Number of pages10
    ISBN (Print)9783642147937
    DOIs
    Publication statusPublished - 2010

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    ASJC Scopus subject areas

    • Materials Science(all)
    • Chemistry(all)

    Cite this

    Zabler, S., Rack, A., García-Moreno, F., Ershov, A., Baumbach, T., & Banhart, J. (2010). Imaging fast processes in liquid metal foams and semi-solid alloys using synchrotron radioscopy with spatio-temporal micro-resolution. In In-situ Studies with Photons, Neutrons and Electrons Scattering (pp. 149-158). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-14794-4_10