The pyrite-type high-pressure form of FeOOH

M Nishi, Y Kuwayama, J Tsuchiya, T Tsuchiya - Nature, 2017 - nature.com
Water transported into Earth's interior by subduction strongly influences dynamics such as
volcanism and plate tectonics,,. Several recent studies have reported hydrous minerals to be …

Stability of a hydrous δ-phase, AlOOH–MgSiO2 (OH) 2, and a mechanism for water transport into the base of lower mantle

I Ohira, E Ohtani, T Sakai, M Miyahara, N Hirao… - Earth and Planetary …, 2014 - Elsevier
The global water cycle in the Earth is one of the most important issues in geodynamics,
because water can affect the physical and rheological properties of the mantle. However, it …

Equation of state of liquid iron under extreme conditions

Y Kuwayama, G Morard, Y Nakajima, K Hirose… - Physical Review Letters, 2020 - APS
The density of liquid iron has been determined up to 116 GPa and 4350 K via static
compression experiments following an innovative analysis of diffuse scattering from liquid …

[PDF][PDF] Extreme conditions research using the large-volume press at the P61B endstation, PETRA III

R Farla, S Bhat, S Sonntag, A Chanyshev… - Journal of …, 2022 - journals.iucr.org
Penetrating, high-energy synchrotron X-rays are in strong demand, particularly for high-
pressure research in physics, chemistry and geosciences, and for materials engineering …

Hydrogen Absorption Reactions of Hydrogen Storage Alloy LaNi5 under High Pressure

T Sato, H Saitoh, R Utsumi, J Ito, Y Nakahira, K Obana… - Molecules, 2023 - mdpi.com
Hydrogen can be stored in the interstitial sites of the lattices of intermetallic compounds. To
date, intermetallic compound LaNi5 or related LaNi5-based alloys are known to be practical …

Melting experiments on Fe–Fe3S system to 254 GPa

Y Mori, H Ozawa, K Hirose, R Sinmyo, S Tateno… - Earth and Planetary …, 2017 - Elsevier
Melting experiments were performed on the Fe–Fe 3 S system at high pressures between 34
and 254 GPa in a laser-heated diamond-anvil cell (DAC), using starting materials of fine …

The structure of Fe–Si alloy in Earth's inner core

S Tateno, Y Kuwayama, K Hirose, Y Ohishi - Earth and Planetary Science …, 2015 - Elsevier
Phase relations of iron–silicon alloy (Fe–6.5 wt.% Si and Fe–9 wt.% Si) were investigated up
to 407 GPa and 5960 K in a laser-heated diamond–anvil cell, which likely covers the entire …

Viscosity of bridgmanite determined by in situ stress and strain measurements in uniaxial deformation experiments

N Tsujino, D Yamazaki, Y Nishihara, T Yoshino… - Science …, 2022 - science.org
To understand mantle dynamics, it is important to determine the rheological properties of
bridgmanite, the dominant mineral in Earth's mantle. Nevertheless, experimental data on the …

[HTML][HTML] Equations of state of iron and nickel to the pressure at the center of the Earth

N Hirao, Y Akahama, Y Ohishi - Matter and Radiation at Extremes, 2022 - pubs.aip.org
Synchrotron radiation x-ray diffraction investigations of iron (Fe) and nickel (Ni) are
conducted at pressures up to 354 and 368 GPa, respectively, and the equations of state …

The system K2CO3-MgCO3 at 6 GPa and 900–1450 °C

A Shatskiy, IS Sharygin… - American …, 2013 - pubs.geoscienceworld.org
Phase relations in the K2CO3-MgCO3 system have been studied in high-pressure high-
temperature (HPHT) multi-anvil experiments using graphite capsules at 6.0±0.5 GPa …