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Title: Tantalum sound velocity under shock compression

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.5054332· OSTI ID:1525750

We used several variations of the shock compression method to measure the longitudinal sound velocity of shocked tantalum over the pressure range 37–363 GPa with a typical uncertainty of 1.0%. These data are consistent with Ta remaining in the bcc phase along the principal Hugoniot from ambient pressure to ≈300 GPa, at which pressure melting occurs. These data also do not support the putative melting phenomena reported below 100 GPa in some static compression experiments.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1525750
Alternate ID(s):
OSTI ID: 1506541
Report Number(s):
LLNL-JRNL-672892; 793827
Journal Information:
Journal of Applied Physics, Vol. 125, Issue 14; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Melting on the Hugoniot
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Melting curve of vanadium up to 470 GPa simulated by ab initio molecular dynamics journal November 2019

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