High-pressure X-ray diffraction study of ε-FeOOH

被引：0
|
作者：
Akio Suzuki
机构：
[1] Tohoku University,Department of Earth and Planetary Materials Science, Graduate School of Science
来源：
Physics and Chemistry of Minerals | 2010年 / 37卷
关键词：
High pressure; X-ray diffraction; Equation of state; Synchrotron radiation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An in situ synchrotron X-ray diffraction study was carried out on ε-FeOOH at room temperature up to a pressure of 8.6 GPa using the energy-dispersive method. The linear compressibility was determined to be βa = 1.69(3) × 10−3 GPa−1, βb = 2.86(6) × 10−3 GPa−1, and βc = 1.73(5) × 10−3 GPa−1. The b-axis of the unit cell is more compressible than the a and c axes. The pressure–volume data were fitted to a third-order Birch–Murnaghan equation of state. The best fit was found using a room temperature isothermal bulk modulus of K0 = 126(3) GPa and its pressure derivative K′ = 10(1).
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页码：153 / 157
页数：4
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