Journal of Mineralogical and Petrological Sciences
Online ISSN : 1349-3825
Print ISSN : 1345-6296
ISSN-L : 1345-6296
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Pressure–volume–temperature equation of state of ε–FeOOH to 11 GPa and 700 K
Akio SUZUKI
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2016 Volume 111 Issue 6 Pages 420-424

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Abstract

A new synchrotron X–ray diffraction study of ε–FeOOH has been carried out to determine the pressure–volume–temperature (PVT) equation of state (EOS). The PVT data fitted a third–order Birch–Murnaghan EOS yielded: isothermal bulk modulus KT0 of 135(3) GPa; its pressure derivative K′ of 6.1(9); (∂KT/∂T)P of −0.05(2) GPa K−1; a0 of 2.6(7) × 10−5 K−1 and a1 of 1.0(3) × 10−7 K−2, where the volumetric thermal expansion coefficient is described as α0,T = a0 + a1 × (T − 300).

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© 2016 Japan Association of Mineralogical Sciences
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