Fig. 6: The effects of Si on the elastic properties of bcc, fcc, and hcp iron alloys at inner-core boundary (ICB) conditions (6000 K and 330 GPa) are compared to the Preliminary Earth Reference Model (PREM)40.
From: Short-range order stabilizes a cubic iron alloy in Earth’s inner core
a Density (ρ), b compressional wave velocity (Vp), and (c) shear wave velocity (Vs) as a function of Si concentration.
