Sound velocity of Fe3C at high pressure and high temperature determined by inelastic X-ray scattering

1Citations
Citations of this article
8Readers
Mendeley users who have this article in their library.

Abstract

The sound velocity of Fe3C was measured at pressures from 33 to 86 GPa and at ambient and high temperatures up to 2300 K using inelastic X-ray scattering (IXS)from laser-heated samples in diamond anvil cells (DACs). The compressional velocity (VP)and density of Fe3C at room temperature were observed to follow a linear relationship (Birch's law). The temperature dependency of Birch's law was not clearly observed and can be ignored. Birch's law for Fe3C is expressed by: VP=1.09±0.14×ρ−1.79±1.26. The result indicates that VP and VS (shear velocity)of the preliminary reference Earth model (PREM)inner core at the Inner Core Boundary (ICB)were by 12% and 48% smaller than those of Fe3C, which could be accounted for by the premelting effect by analogy from pure Fe or by partial melting of the Fe–Fe3C mixture in the inner core.

Cite

CITATION STYLE

APA

Takahashi, S., Ohtani, E., Sakamaki, T., Kamada, S., Fukui, H., Tsutsui, S., … Baron, A. Q. R. (2019). Sound velocity of Fe3C at high pressure and high temperature determined by inelastic X-ray scattering. Comptes Rendus - Geoscience, 351(2–3), 190–196. https://doi.org/10.1016/j.crte.2018.09.005

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free