Density measurements of liquid Fe-S alloys at high-pressure

Citation
C. Sanloup et al., Density measurements of liquid Fe-S alloys at high-pressure, GEOPHYS R L, 27(6), 2000, pp. 811-814
Citations number
23
Categorie Soggetti
Earth Sciences
Journal title
GEOPHYSICAL RESEARCH LETTERS
ISSN journal
00948276 → ACNP
Volume
27
Issue
6
Year of publication
2000
Pages
811 - 814
Database
ISI
SICI code
0094-8276(20000315)27:6<811:DMOLFA>2.0.ZU;2-I
Abstract
We present the first static measurements of the density of metallic liquids in the Fe-S system in the pressure and temperature range 1.5 GPa-6.2 GPa a nd 1500 K - 1780 K. Density is inferred from X-ray absorption experiments c arried out with a large volume press at the European Synchrotron Radiation Facility. It is shown that increasing the amount of sulfur in liquid iron d ecreases the bulk incompressibility by -2.5 GPa per 1 weight% of S. These d ata are important for constraining the presence and amount of sulfur in the cores of small planetary bodies.