Equation of state of the NaCl-B2 phase up to 304 GPa

Takeshi Sakai; Eiji Ohtani; Naohisa Hirao; Yasuo Ohishi

doi:10.1063/1.3573393

Equation of state of the NaCl-B2 phase up to 304 GPa

Takeshi Sakai, Eiji Ohtani, Naohisa Hirao, Yasuo Ohishi

SCI - Earth Science

Research output: Contribution to journal › Article

29 Citations (Scopus)

Abstract

We compressed NaCl-B2 to 304 GPa and presented a pressure scale based on the Birch-Murnaghan and Vinet equations of state for this phase. The pressure difference between the two formulations of the equation of state was less than 2.0% within the pressure range of 50-364 GPa. The present data indicates that the uniaxial stress of the platinum used in the sample is 2.4 GPa and comparable with that of runs using a helium pressure medium. The compression curve of NaCl-B2 was expressed by the Birch-Murnaghan equation of state with fixed volume at ambient pressure, where V₀ = 37.73(4.05) Å³, K = 47.00(46) GPa and K′ =4.10(2) based upon Matsui 's platinum scale.

Original language	English
Article number	084912
Journal	Journal of Applied Physics
Volume	109
Issue number	8
DOIs	https://doi.org/10.1063/1.3573393
Publication status	Published - 2011 Apr 15

ASJC Scopus subject areas

Physics and Astronomy(all)

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Sakai, T., Ohtani, E., Hirao, N., & Ohishi, Y. (2011). Equation of state of the NaCl-B2 phase up to 304 GPa. Journal of Applied Physics, 109(8), [084912]. https://doi.org/10.1063/1.3573393

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abstract = "We compressed NaCl-B2 to 304 GPa and presented a pressure scale based on the Birch-Murnaghan and Vinet equations of state for this phase. The pressure difference between the two formulations of the equation of state was less than 2.0% within the pressure range of 50-364 GPa. The present data indicates that the uniaxial stress of the platinum used in the sample is 2.4 GPa and comparable with that of runs using a helium pressure medium. The compression curve of NaCl-B2 was expressed by the Birch-Murnaghan equation of state with fixed volume at ambient pressure, where V0 = 37.73(4.05) {\AA}3, K = 47.00(46) GPa and K′ =4.10(2) based upon Matsui 's platinum scale.",

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AU - Sakai, Takeshi

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AU - Ohishi, Yasuo

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