Electrical Resistivity of FeS at High Pressures and Temperatures: Implications of Thermal Transport in the Core of Ganymede

2021 ◽  
Author(s):  
Joshua A.H. Littleton ◽  
Richard A. Secco ◽  
Wenjun Yong
Keyword(s):  
Electrical Resistivity ◽  
Thermal Transport ◽  
High Pressures ◽  
The Core ◽  
High Pressures And Temperatures

scholarly journals Electrical resistivity of fcc phase iron hydrides at high pressures and temperatures

2019 ◽  
Vol 351 (2-3) ◽  
pp. 147-153 ◽  
Author(s):  
Kenji Ohta ◽  
Sho Suehiro ◽  
Kei Hirose ◽  
Yasuo Ohishi
Keyword(s):  
Electrical Resistivity ◽  
High Pressures ◽  
High Pressures And Temperatures ◽  
Fcc Phase

scholarly journals Thermal Convection in the Core of Ganymede Inferred from Liquid Eutectic Fe-FeS Electrical Resistivity at High Pressures

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 875
Author(s):  
Joshua A. H. Littleton ◽  
Richard A. Secco ◽  
Wenjun Yong
Keyword(s):  
Electrical Resistivity ◽  
Thermal Convection ◽  
High Pressures ◽  
Freezing Point ◽  
Thermal Evolution ◽  
Significant Proportion ◽  
Freezing Point Depression ◽  
The Core ◽  
Liquid Transition ◽  
End Members

The core of Ganymede is suggested to be mainly Fe but with a significant proportion of S. Effects of S as a core constituent are freezing-point depression, allowing for a molten core at relatively low core temperatures, and modification of transport properties that can influence the dynamo and thermal evolution. The electrical resistivity of solid and liquid Fe-FeS (~24–30 wt.% S) was measured up to 5 GPa and thermal conductivity was calculated using the Wiedemann–Franz law. These first well-constrained experimental data on near eutectic Fe-FeS compositions showed intermediate values of electrical and thermal conductivities compared to the end-members. Eutectic temperatures were delineated from the solid to liquid transition, inferred from sharp changes in electrical resistivity, at each pressure. Combined with thermal models, our calculated estimates of the adiabatic heat flow of a molten Fe-FeS eutectic composition core model of Ganymede showed that thermal convection is permissible.

Wide-range equations of state for organic liquids

2007 ◽  
Vol 5 ◽  
pp. 113-120 ◽  
Author(s):  
R.Kh. Bolotnova
Keyword(s):  
High Pressures ◽  
Equations Of State ◽  
Organic Liquids ◽  
Liquid Phases ◽  
Wide Range ◽  
High Pressures And Temperatures

The method of construction the wide-range equations of state for organic liquids, describing the gas and liquid phases including dissociation and ionization which occurs during an intense collapse of steam bubbles and accompanied by ultra-high pressures and temperatures, is proposed.

scholarly journals The thermal conductivity of the Earth's core and implications for its thermal and compositional evolution

2020 ◽  
Author(s):  
Kenji Ohta ◽  
Kei Hirose
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Thermal History ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Iron Alloys ◽  
Compositional Evolution ◽  
The Earth ◽  
Diamond Anvil ◽  
High Pressures And Temperatures

Abstract Precise determinations of the thermal conductivity of iron alloys at high pressures and temperatures are essential for understanding the thermal history and dynamics of the metallic cores of the Earth. We review relevant high-pressure experiments using a diamond-anvil cell and discuss implications of high core conductivity for its thermal and compositional evolution.

EXPERIMENTAL STUDY OF THE SOLUBILITY OF URANINITE IN GRANITIC MELTS AND FLUID SOLUTIONS AT HIGH PRESSURES AND TEMPERATURES

1987 ◽  
Vol 29 (8) ◽  
pp. 997-1004 ◽  
Author(s):  
V. A. Zharikov ◽  
I. P. Ivanov ◽  
B. I. Omel'yanenko ◽  
A. F. Red'kin ◽  
S. V. Yudintsev
Keyword(s):  
Experimental Study ◽  
High Pressures ◽  
High Pressures And Temperatures

Thermal properties of Al at high pressures and temperatures

2004 ◽  
Vol 70 (17) ◽  
Author(s):  
Shikai Xiang ◽  
Lingcang Cai ◽  
Fuqian Jing ◽  
Shunjin Wang
Keyword(s):  
Thermal Properties ◽  
High Pressures ◽  
High Pressures And Temperatures
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