scholarly journals Composition of the Earth's inner core from high-pressure sound velocity measurements in Fe–Ni–Si alloys

2010 ◽  
Vol 295 (1-2) ◽  
pp. 292-296 ◽  
Author(s):  
Daniele Antonangeli ◽  
Julien Siebert ◽  
James Badro ◽  
Daniel L. Farber ◽  
Guillaume Fiquet ◽  
...  
Keyword(s):  
High Pressure ◽  
Sound Velocity ◽  
Inner Core ◽  
Velocity Measurements ◽  
Earth’S Inner Core

scholarly journals Sound velocity in iron carbide (Fe3C) at high pressure: Implications for the carbon content of the Earth's inner core

2009 ◽  
Vol 172 (1-2) ◽  
pp. 125-129 ◽  
Author(s):  
Guillaume Fiquet ◽  
James Badro ◽  
Eugene Gregoryanz ◽  
Yingwei Fei ◽  
Florent Occelli
Keyword(s):  
High Pressure ◽  
Carbon Content ◽  
Sound Velocity ◽  
Inner Core ◽  
Iron Carbide ◽  
Earth’S Inner Core

Sound velocity measurements of hcp Fe-Si alloy at high pressure and high temperature by inelastic X-ray scattering

2018 ◽  
Vol 103 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Takanori Sakairi ◽  
Tatsuya Sakamaki ◽  
Eiji Ohtani ◽  
Hiroshi Fukui ◽  
Seiji Kamada ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Sound Velocity ◽  
Velocity Measurements ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals High-Pressure Sound Velocity Measurements of Liquids Using In Situ Ultrasonic Techniques in a Multianvil Apparatus

Minerals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 126 ◽  
Author(s):  
Zhicheng Jing ◽  
Tony Yu ◽  
Man Xu ◽  
Julien Chantel ◽  
Yanbin Wang
Keyword(s):  
High Pressure ◽  
Sound Velocity ◽  
Velocity Measurements ◽  
Melting Temperatures ◽  
Technical Developments ◽  
Silicate Liquids ◽  
Ultrasonic Techniques ◽  
Photon Source

Sound velocity and equation of state of liquids provide important constraints on the generation, presence, and transport of silicate and metallic melts in the Earth’s interior. Unlike their solid counterparts, these properties of liquids pose great technical challenges to high-pressure measurements and are poorly constrained. Here we present the technical developments that have been made at the GSECARS beamline 13-ID-D of the Advanced Photon Source for the past several years for determination of sound velocity of liquids using the ultrasonic techniques in a 1000-ton Kawai-type multianvil apparatus. Temperature of the sound velocity measurements has been extended to ~2400 K at 4 GPa and ~2000 K at 8 GPa to enable studies of liquids with very high melting temperatures, such as the silicate liquids.

Sound velocity measurements in liquid Fe–S at high pressure: Implications for Earth's and lunar cores

2013 ◽  
Vol 362 ◽  
pp. 182-186 ◽  
Author(s):  
Keisuke Nishida ◽  
Yoshio Kono ◽  
Hidenori Terasaki ◽  
Suguru Takahashi ◽  
Miho Ishii ◽  
...  
Keyword(s):  
High Pressure ◽  
Sound Velocity ◽  
Velocity Measurements

scholarly journals Sound velocities and density measurements of solid hcp-Fe and hcp-Fe–Si (9 wt.%) alloy at high pressure: Constraints on the Si abundance in the Earth's inner core

2018 ◽  
Vol 482 ◽  
pp. 446-453 ◽  
Author(s):  
Daniele Antonangeli ◽  
Guillaume Morard ◽  
Luigi Paolasini ◽  
Gaston Garbarino ◽  
Caitlin A. Murphy ◽  
...  
Keyword(s):  
High Pressure ◽  
Inner Core ◽  
Density Measurements ◽  
Earth’S Inner Core ◽  
Sound Velocities

High-Pressure Elasticity of Iron and Anisotropy of Earth's Inner Core

Science ◽  
1995 ◽  
Vol 267 (5206) ◽  
pp. 1972-1975 ◽  
Author(s):  
L. Stixrude ◽  
R. E. Cohen
Keyword(s):  
High Pressure ◽  
Inner Core ◽  
Earth’S Inner Core
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