2.16 Seismic anisotropy of the deep Earth from a mineral and rock physics perspective

D Mainprice - Treatise on geophysics, 2010 - books.google.com
In this section the contribution of CPO to seismic anisotropy in the deep Earth with cases of
olivine and the role of melt is illustrated. The CPO in rocks of upper-mantle origin is now well …

Sound velocity of hcp-Fe at high pressure: experimental constraints, extrapolations and comparison with seismic models

D Antonangeli, E Ohtani - Progress in Earth and Planetary Science, 2015 - Springer
Determining the sound velocity of iron under extreme thermodynamic conditions is essential
for a proper interpretation of seismic observations of the Earth's core but is experimentally …

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

D Antonangeli, J Siebert, J Badro, DL Farber… - Earth and Planetary …, 2010 - Elsevier
We performed room-temperature sound velocity and density measurements on a
polycrystalline alloy, Fe0. 89Ni0. 04Si0. 07, in the hexagonal close-packed (hcp) phase up …

First-principles thermal equation of state and thermoelasticity of hcp Fe at high pressures

X Sha, RE Cohen - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We investigate the equation of state and elastic properties of hcp iron at high pressures and
high temperatures using the first-principles linear-response linear-muffin-tin-orbital method …

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

D Antonangeli, G Morard, L Paolasini… - Earth and Planetary …, 2018 - Elsevier
We carried out sound velocity and density measurements on solid hcp-Fe and an hcp-Fe–Si
alloy with 9 wt.% Si at 300 K up to∼ 170 and∼ 140 GPa, respectively. The results allow us …

Simultaneous sound velocity and density measurements of hcp iron up to 93 GPa and 1100 K: An experimental test of the Birch's law at high temperature

D Antonangeli, T Komabayashi, F Occelli… - Earth and Planetary …, 2012 - Elsevier
We performed sound velocity and density measurements on polycrystalline hexagonal close-
packed (hcp) iron at simultaneous high pressure and high temperature, up to 93GPa and …

Modeling analysis of the influence of plasticity on high pressure deformation of hcp-Co

S Merkel, C Tomé, HR Wenk - Physical Review B—Condensed Matter and …, 2009 - APS
Previously measured in situ x-ray diffraction is used to assess the development of internal
elastic strains within grains of a sample of polycrystalline cobalt plastically deformed up to a …

Accurate determination of grain properties using three-dimensional synchrotron X-ray diffraction: A comparison with EBSD

K Louca, H Abdolvand - Materials Characterization, 2021 - Elsevier
The characterization of elastic strain and stress at the grain level is becoming an important
route for validating meso-and nano-scale numerical models. The response of a grain to a …

High-pressure studies of size dependent yield strength in rhenium diboride nanocrystals

S Hu, SG Hamilton, CL Turner, DD Robertson… - Nanoscale …, 2024 - pubs.rsc.org
The superhard ReB2 system is the hardest pure phase diboride synthesized to date.
Previously, we have demonstrated the synthesis of nano-ReB2 and the use of this …

Experimental determination of the elasticity of iron at high pressure

WL Mao, VV Struzhkin, AQR Baron… - Journal of …, 2008 - Wiley Online Library
We present a multitechnique approach to experimentally determine the elastic anisotropy of
polycrystalline hcp Fe at high pressure. Directional phonon measurements from inelastic X …