Synchrotron hard X-ray imaging of shock-compressed metal powders

POSTER

Abstract

This poster will present the application of a new, high-energy (50 to 250 keV) synchrotron X-ray radiography technique [1] to the study of shock-compressed granular materials. Following plate-impact loading, transmission radiography was used to quantitatively observe the compaction and release processes in a range of high-Z metal powders (e.g. Fe, Ni, Cu). By comparing the predictions of 3D numerical models initialized from X-ray tomograms--captured prior to loading--with experimental results, this research represents a new approach to refining mesoscopic compaction models. \\[4pt] [1] D. E. Eakins and D. J. Chapman, Review of Scientific Instruments 85, 123708 (2014).

*The authors gratefully acknowledge the ongoing support of Imperial College London, EPSRC, STFC and the Diamond Light Source, and AWE Plc.

Authors

  • Michael E. Rutherford

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • David J. Chapman

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • Mark A. Collinson

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • David R. Jones

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • Jasmina Music

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • Samuel J.P. Stafford

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • Gareth R. Tear

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • Thomas G. White

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • John B.R. Winters

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW

  • Michael Drakopoulos

    • Diamond Light Source, Beamline I12 (JEEP), Didcot, Oxforshire, UK OX11 ODE

  • Daniel E. Eakins

    • Institute of Shock Physics, Blackett Laboratory, Imperial College London, London, UK SW7 2BW