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Title: Multiphase equation of state and thermoelastic data for polycrystalline beryllium

Abstract

Here, we describe construction of a new multiphase equation of state (EOS) for beryllium calibrated almost entirely to density functional theory calculations based on the AM05 exchange-correlation functional. The EOS is in tabular form (as SESAME 92025) and includes hcp, bcc, and liquid/plasma phases. We find hcp→bcc transitions at ~325 GPa at zero and room temperatures, and at ~150 GPa on the Hugoniot. Shock melting from the bcc phase proceeds at 205-230 GPa. We also present experimental results for the isentropic bulk modulus as a function of temperature, based on resonant ultrasound spectroscopy measurements.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1739930
Report Number(s):
LA-UR-19-26662
Journal ID: ISSN 0094-243X; TRN: US2205461
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 2272; Journal Issue: 1; Conference: 21.Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter (SHOCK19), Portland, OR (United States), 16-21 Jun 2019; Journal ID: ISSN 0094-243X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; beryllium; equation of state; shock physics

Citation Formats

Coe, Joshua Damon, Rudin, Sven Peter, and Maiorov, Boris Alfredo. Multiphase equation of state and thermoelastic data for polycrystalline beryllium. United States: N. p., 2020. Web. doi:10.1063/12.0000902.
Coe, Joshua Damon, Rudin, Sven Peter, & Maiorov, Boris Alfredo. Multiphase equation of state and thermoelastic data for polycrystalline beryllium. United States. https://doi.org/10.1063/12.0000902
Coe, Joshua Damon, Rudin, Sven Peter, and Maiorov, Boris Alfredo. Wed . "Multiphase equation of state and thermoelastic data for polycrystalline beryllium". United States. https://doi.org/10.1063/12.0000902. https://www.osti.gov/servlets/purl/1739930.
@article{osti_1739930,
title = {Multiphase equation of state and thermoelastic data for polycrystalline beryllium},
author = {Coe, Joshua Damon and Rudin, Sven Peter and Maiorov, Boris Alfredo},
abstractNote = {Here, we describe construction of a new multiphase equation of state (EOS) for beryllium calibrated almost entirely to density functional theory calculations based on the AM05 exchange-correlation functional. The EOS is in tabular form (as SESAME 92025) and includes hcp, bcc, and liquid/plasma phases. We find hcp→bcc transitions at ~325 GPa at zero and room temperatures, and at ~150 GPa on the Hugoniot. Shock melting from the bcc phase proceeds at 205-230 GPa. We also present experimental results for the isentropic bulk modulus as a function of temperature, based on resonant ultrasound spectroscopy measurements.},
doi = {10.1063/12.0000902},
journal = {AIP Conference Proceedings},
number = 1,
volume = 2272,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2020},
month = {Wed Jan 01 00:00:00 EST 2020}
}

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