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P-V-T equation of state of boron carbide

Journal Article · · Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences
 [1];  [2];  [3];  [4];  [5];  [2]
  1. Argonne National Laboratory (ANL), Argonne, IL (United States); University of Illinois Chicago
  2. University of Illinois, Chicago, IL (United States)
  3. Argonne National Laboratory (ANL), Argonne, IL (United States)
  4. Army Research Laboratory, Aberdeen, MD (United States)
  5. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
We report the P-V-T equation of state measurements of B4C to 50 GPa and approximately 2500 K in laser-heated diamond anvil cells. We obtain an ambient temperature, third-order Birch–Murnaghan fit to the P-V data that yields a bulk modulus K0 of 221(2) GPa and derivative, (dK/dP)0 of 3.3(1). These were used in fits with both a Mie–Grüneisen–Debye model and a temperature-dependent, Birch–Murnaghan equation of state that includes thermal pressure estimated by thermal expansion (α) and a temperature-dependent bulk modulus (dK0/dT). The ambient pressure thermal expansion coefficient (α0 + α1T), Grüneisen γ(V) = γ0(V/V0)q and volume-dependent Debye temperature, were used as input parameters for these fits and found to be sufficient to describe the data in the whole P-T range of this study.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); University of Illinois, Chicago, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357; AC52-07NA27344; NA0003975
OSTI ID:
2006510
Alternate ID(s):
OSTI ID: 2404928
Journal Information:
Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences, Journal Name: Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences Journal Issue: 2258 Vol. 381; ISSN 1364-503X
Publisher:
The Royal Society PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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