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

Abstract

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 work 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.

Authors:
 [1];  [1];  [1]
  1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1429624
Report Number(s):
SAND2017-0791J
Journal ID: 0094-243X; 650711
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1793; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 36 MATERIALS SCIENCE; Laboratory procedures; Materials; Metals; Alkali metals; Metallurgy; General physics; Pure metals; Materials science; Transition metals; Copper

Citation Formats

Davis, Jean-Paul, Knudson, Marcus D., and Brown, Justin L. Results from new multi-megabar shockless compression experiments at the Z machine. United States: N. p., 2017. Web. doi:10.1063/1.4971571.
Davis, Jean-Paul, Knudson, Marcus D., & Brown, Justin L. Results from new multi-megabar shockless compression experiments at the Z machine. United States. doi:10.1063/1.4971571.
Davis, Jean-Paul, Knudson, Marcus D., and Brown, Justin L. Sun . "Results from new multi-megabar shockless compression experiments at the Z machine". United States. doi:10.1063/1.4971571. https://www.osti.gov/servlets/purl/1429624.
@article{osti_1429624,
title = {Results from new multi-megabar shockless compression experiments at the Z machine},
author = {Davis, Jean-Paul and Knudson, Marcus D. and Brown, Justin L.},
abstractNote = {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 work 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 = {10.1063/1.4971571},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1793,
place = {United States},
year = {2017},
month = {1}
}

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Works referenced in this record:

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