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Title: Tantalum sound velocity under shock compression

Abstract

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.

Authors:
ORCiD logo [1];  [1];  [1];  [2];  [1]; ORCiD logo [3]; ORCiD logo [3];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550, USA
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1525750
Alternate Identifier(s):
OSTI ID: 1506541
Report Number(s):
LLNL-JRNL-672892
Journal ID: ISSN 0021-8979; 793827
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 125; Journal Issue: 14; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Akin, Minta C., Nguyen, Jeffrey H., Beckwith, Martha A., Chau, Ricky, Ambrose, W. Patrick, Fat’yanov, Oleg V., Asimow, Paul D., and Holmes, Neil C. Tantalum sound velocity under shock compression. United States: N. p., 2019. Web. doi:10.1063/1.5054332.
Akin, Minta C., Nguyen, Jeffrey H., Beckwith, Martha A., Chau, Ricky, Ambrose, W. Patrick, Fat’yanov, Oleg V., Asimow, Paul D., & Holmes, Neil C. Tantalum sound velocity under shock compression. United States. doi:10.1063/1.5054332.
Akin, Minta C., Nguyen, Jeffrey H., Beckwith, Martha A., Chau, Ricky, Ambrose, W. Patrick, Fat’yanov, Oleg V., Asimow, Paul D., and Holmes, Neil C. Sun . "Tantalum sound velocity under shock compression". United States. doi:10.1063/1.5054332.
@article{osti_1525750,
title = {Tantalum sound velocity under shock compression},
author = {Akin, Minta C. and Nguyen, Jeffrey H. and Beckwith, Martha A. and Chau, Ricky and Ambrose, W. Patrick and Fat’yanov, Oleg V. and Asimow, Paul D. and Holmes, Neil C.},
abstractNote = {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.},
doi = {10.1063/1.5054332},
journal = {Journal of Applied Physics},
number = 14,
volume = 125,
place = {United States},
year = {2019},
month = {4}
}

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