P-V-T equation of state of boron carbide
Journal Article
·
· Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences
- Argonne National Laboratory (ANL), Argonne, IL (United States); University of Illinois Chicago
- University of Illinois, Chicago, IL (United States)
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Army Research Laboratory, Aberdeen, MD (United States)
- 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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