High-temperature, high-pressure behavior of lithium fluoride

ORAL

Abstract

Lithium fluoride (LiF) is used extensively as optical windows in dynamic compression experiments and is also used as pressure media and thermal insulation in diamond-anvil cell (DAC) experiments. In order to better understand this important high-pressure standard and ubiquitous window material, we present a high-temperature equation of state of LiF below its melting curve as measured in a laser-heated DAC. These measurements complement already measured low-T isotherms [e.g., see Myint et al., JCP, 2019 for references] performed with resistively-heated DACs and are used to generate phase-aware, thermally accurate equations of state for LiF.

*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-ABS-815855.

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Presenters

  • Kanani Lee

    • Lawrence Livermore Natl Lab

Authors

  • Kanani Lee

    • Lawrence Livermore Natl Lab

  • Sarah M. Arveson

    • Department of Earth & Planetary Science, University of California, Berkeley

  • Markus W Daene

    • Lawrence Livermore Natl Lab

  • Sebastien Hamel

    • Lawrence Livermore Natl Lab

  • Yue Meng

    • HPCAT, ANL
    • HPCAT, APS, Argonne National Laboratory
    • Argonne National Laboratory
    • HPCAT, APS

  • Dean Smith

    • HPCAT, ANL
    • HPCAT, APS, Argonne National Laboratory

  • Eric Dutra

    • Nevada National Security Site

  • Minta C Akin

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory