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Results from new multi-megabar shockless compression experiments at the Z machine

Sandia’s Z Machine has been used to magnetically drive shockless compression of materials in a planar configuration to multi-megabar pressure levels, allowing accurate measurements of quasi-isentropic mechanical response at relatively low temperatures in the solid phase. This paper details recent im...

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Main Authors:	Davis, Jean-Paul, Knudson, Marcus D., Brown, Justin L.
Format:	Conference Proceeding
Language:	English
Subjects:	Alkali metals Copper General physics Gold INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Laboratory procedures Lithium Lithium fluoride Materials MATERIALS SCIENCE Mechanical analysis Metallurgy Metals Platinum Pure metals Solid phases Transition metals
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creator	Davis, Jean-Paul Knudson, Marcus D. Brown, Justin L.
description	Sandia’s Z Machine has been used to magnetically drive shockless compression of materials in a planar configuration to multi-megabar pressure levels, allowing accurate measurements of quasi-isentropic mechanical response at relatively low temperatures in the solid phase. This paper details recent improvements to design and analysis of such experiments, including the use of new data on the mechanical and optical response of lithium fluoride windows. Comparison of windowed and free-surface data on copper to 350 GPa lends confidence to the window correction method. Preliminary results are presented on gold to 500 GPa and platinum to 450 GPa; both appear stiffer than existing models.
doi_str_mv	10.1063/1.4971571
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subjects	Alkali metals Copper General physics Gold INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Laboratory procedures Lithium Lithium fluoride Materials MATERIALS SCIENCE Mechanical analysis Metallurgy Metals Platinum Pure metals Solid phases Transition metals
title	Results from new multi-megabar shockless compression experiments at the Z machine
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