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X-Ray Diffraction of Shocked Platinum

ORAL

Abstract

Platinum is often used as a pressure calibrant in diamond-anvil cell experiments, where it is routinely compressed to high pressure–temperature states. Previous experiments have observed the face-centered cubic (fcc) phase of platinum up to 383 GPa.[1] Laser-driven experiments at the University of Rochester’s Laboratory for Laser Energetics used the powder x-ray diffraction platform[2] on OMEGA EP to extend these measurements for shock and shock-ramped platinum up to 500 GPa. The fcc phase remained stable upon compression until liquid diffraction was observed. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.

[1] S. M. Sharma et al., Phys. Rev. Lett. 124, 235701 (2020).


[2] J. R. Rygg et al., Rev. Sci. Instrum. 83, 113904 (2012).

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Presenters

  • Mary Kate Ginnane

    University of Rochester

Authors

  • Mary Kate Ginnane

    University of Rochester

  • Amy E Lazicki

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Richard G Kraus

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Xuchen Gong

    Lab for Laser Energetics

  • Danae Polsin

    Laboratory for Laser Energetics, Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA. Laboratory for Laser Energetics, Rochester, NY, USA.

  • Chad A McCoy

    Sandia National Laboratories

  • Christopher T Seagle

    Sandia National Laboratories

  • Jean-Paul Davis

    Sandia National Laboratories

  • Seth Root

    Sandia National Laboratories

  • Michelle C Marshall

    University of Rochester

  • Brian Henderson

    University of Rochester

  • Linda E Hansen

    Sandia National Laboratories

  • Zaire Sprowal

    University of Rochester

  • Alexa LaPierre

    University of Rochester

  • Margaret F Huff

    Lab for Laser Energetics

  • Jon H Eggert

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Dayne E Fratanduono

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Thomas R Boehly

    University of Rochester

  • J. Ryan Rygg

    University of Rochester

  • Gilbert W Collins

    University of Rochester, Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA. Laboratory for Laser Energetics, Rochester, NY, USA. Department of Physics and Astronomy,