Earth's inner core is solid despite extreme high temperatures
the verdict
SUPPORTED
the evidence backs this
confidence 90/100
Multiple high-pressure ab initio and experimental studies confirm that iron and its alloys remain in a solid phase under the extreme temperatures of Earth's inner core due to immense ambient pressure.
Evidence for · 4
Iron under Earth’s core conditions: Liquid-state thermodynamics and high-pressure melting curve from ab initio calculations
2001 · cited by 287
Calculates the thermodynamics and high-pressure melting curves of iron under Earth's core conditions, supporting the understanding of solid iron phases at extreme temperatures.
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More for · 3
Melting temperature of iron under the Earth’s inner core condition from deep machine learning
2024 · cited by 13
Uses advanced deep machine learning and ab initio methods to confirm iron's melting behavior and solid phase stability at the extreme temperatures and pressures of the inner core boundary.
Sound velocity of hexagonal close-packed iron to the Earth's inner core pressure.
2022 · cited by 6
Examines the sound velocities and structural properties of hexagonal close-packed iron under inner-core pressures, affirming its solid nature.
High Pressure Melting Curve of Fe Determined by Inter‐Metallic Fast Diffusion Technique
2023 · cited by 5
Investigates the melting temperature of iron under high pressures to establish the thermal profile and boundary conditions where iron solidifies.