Mechanical response of lithium fluoride under off-principal dynamic shock-ramp loading
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Single crystal lithium fluoride (LiF), oriented [100], was shock loaded and subsequently shocklessly compressed in two experiments at the Z Machine. We employed velocimetry measurements in order to obtain an impactor velocity, shock transit times, and in-situ particle velocities for LiF samples up to ~1.8 mm thick. We also performed a dual thickness Lagrangian analysis on the in-situ velocimetry data to obtain the mechanical response along the loading path of these experiments. Finally, we observed an elastic response on one experiment during initial shockless compression from 100 GPa before yielding. The relatively large thickness differences utilized for the dual sample analyses (up to ~1.8 mm) combined with a relative timing accuracy of ~0.2 ns resulted in an uncertainty of less than 1% on density and stress at ~200 GPa peak loading on one experiment and <4% on peak loading at ~330 GPa for another. The stress-density analyses from these experiments compare favorably with recent equation of state models for LiF.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Science (NA-113)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1332913
- Alternate ID(s):
- OSTI ID: 1330114
- Report Number(s):
- SAND2016-10760J; JAPIAU; 648585; TRN: US1700175
- Journal Information:
- Journal of Applied Physics, Vol. 120, Issue 16; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
X-ray diffraction of ramp-compressed aluminum to 475 GPa
|
journal | August 2018 |
Two-phase equation of state for lithium fluoride
|
journal | February 2019 |
First-principles simulations of warm dense lithium fluoride
|
journal | April 2017 |
| First-Principles Simulations of Warm Dense Lithium Fluoride | text | January 2017 |
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