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

被引：32

作者：

Nishida, Keisuke ^{[1
]}

Ohtani, Eiji ^{[1
]}

Urakawa, Satoru ^{[2
]}

Suzuki, Akio ^{[1
]}

Sakamaki, Tatsuya ^{[1
]}

Terasaki, Hidenori ^{[1
]}

Katayama, Yoshinori ^{[3
]}

机构：

[1] Tohoku Univ, Dept Earth & Planetary Mat Sci, Sendai, Miyagi 9808578, Japan

[2] Okayama Univ, Dept Earth Sci, Okayama 7008530, Japan

[3] Japan Atom Energy Agcy, Hyogo 6795143, Japan

来源：

AMERICAN MINERALOGIST | 2011年 / 96卷 / 5-6期

基金：

日本学术振兴会;

关键词：

X-ray absorption method; liquid FeS; density; high pressure; equation of state; MAGNETIC-FIELD; INTERNAL STRUCTURE; THERMAL-EXPANSION; STATE; MARS; TEMPERATURE; MERCURY; COEFFICIENTS; ATTENUATION; PYRRHOTITE;

D O I：

10.2138/am.2011.3616

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

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: K(0T) = 2.5 +/- 0.3 GPa at T = 1500 K, (dK(0)/dT)(P) = 0.0036 +/- 0.0003 GPa/K, and (dK(0)/dP)(T) = 24 +/- 2. These results suggest that liquid FeS is more compressible than Fe-rich liquid Fe-S.

引用

页码：864 / 868

页数：5

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