[SIT22-P37] Sound velocity and density of liquid iron alloys under Earth’s core pressures by laser-shock compression
Keywords:Sound velocity, Shock compression, Iron alloy, Earth's core, Birch's law
We conducted shock-compression experiments using a High Intensity Plasma Experimental Research (HIPER) system at the GEKKO-XII laser irradiation facility  at the Institute of Laser Engineering, Osaka University. The samples were Fe-Ni alloys, Fe-Si alloys, and pyrrhotite. The sound velocities and densities of shock-compressed iron alloys using the high-power laser were measured by x-ray radiography [10-12] at pressures up to 1000 GPa.
Part of this work was performed under the joint research project of the Institute of Laser Engineering, Osaka University and supported by JSPS KAKENHI Grant Number JP16K05541.
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