Thermal equation of state of goethite (-FeOOH)

被引：7

作者：

Suzuki, Akio ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Earth Sci, Sendai, Miyagi 9808578, Japan

来源：

HIGH PRESSURE RESEARCH | 2017年 / 37卷 / 02期

关键词：

Iron oxyhydroxide; X-ray diffraction; equation of state; hydrous mineral; goethite; X-RAY-DIFFRACTION; HIGH-PRESSURE; DELTA-ALOOH; TEMPERATURE; DIASPORE; GPA; COMPRESSIBILITY; ALO(OH);

D O I：

10.1080/08957959.2017.1301938

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The pressure-volume-temperature (P-V-T) equation of state (EoS) of natural goethite (-FeOOH) has been determined by an X-ray diffraction study using synchrotron radiation. Fitting the volume data to the third-order Birch-Murnaghan EoS yielded an isothermal bulk modulus, B-0 of 85.9(15)GPa, and a pressure derivative of the bulk modulus, B, of 12.6(8). The temperature derivative of the bulk modulus, (B/T)(P), was -0.022(9)GPaK(-1). The thermal expansion coefficient (0) was determined to be 4.0(5)x10(-5)K(-1).

引用

页码：193 / 199

页数：7

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