Density measurement of liquid FeS at high pressures using synchrotron X-ray absorption

Keisuke Nishida, Eiji Otani, Satoru Urakawa, Akio Suzuki, Tatsuya Sakamaki, Hidenori Terasaki, Yoshinori Katayama

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

The density of liquid iron sulfide (FeS) was measured up to 3.8 GPa and 1800 K using an X-ray absorption method. The compression curve of liquid FeS was fitted using the Vinet equation of state. The isothermal bulk modulus and its temperature and pressure derivatives were determined using a nonlinear least-squares fit. The parameter sets determined were: K0T = 2.5 ± 0.3 GPa at T = 1500 K, (dK0/dT)P = -0.0036 ± 0.0003 GPa/K, and (dK0/dP)T = 24 ± 2. These results suggest that liquid FeS is more compressible than Fe-rich liquid Fe-S.

Original languageEnglish
Pages (from-to)864-868
Number of pages5
JournalAmerican Mineralogist
Volume96
Issue number5-6
DOIs
Publication statusPublished - 2011 May 1

Keywords

  • Density
  • Equation of state
  • High pressure
  • Liquid FeS
  • X-ray absorption method

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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