Journal
PHYSICS OF THE EARTH AND PLANETARY INTERIORS
Volume 228, Issue -, Pages 294-299Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.pepi.2013.12.012
Keywords
Liquid density; High pressure; Equation of state; Fe-S alloy; X-ray radiograph; Exponential relation of bulk modulus
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Funding
- COMPRES, under NSF [EAR 06-49658]
- U.S. Department of Energy [DE-AC02-98CH10886]
- NSF [EAR-0711321, EAR-1015509]
- DOE [DE-FG02-07ER46461]
- EFree, an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001057]
- Division Of Earth Sciences
- Directorate For Geosciences [1015509] Funding Source: National Science Foundation
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Density of liquid FeS was measured at 1650 K and pressures up to 5.6 GPa using the X-ray absorption radiograph system of the X17B2 beamline at the National Synchrotron Light Source at the Brookhaven National Laboratory. The experimental data were fitted to the third-order Birch-Murnaghan equation of state to calculate the isothermal bulk modulus (K-0) of the liquid, yielding K-0 = 11 +/- 3 GPa when the pressure derivative of bulk modulus is fixed at 5. Combining this result with those from previous studies on Fe-S liquid system, we suggest an exponential relation between the liquid Fe-S alloy bulk modulus and its sulfur content. Published by Elsevier B.V.
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