Pressure dependence of melting temperature of iron at the earth's core conditions

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Abstract

A semi-empirical relation to compute the pressure dependence of the melting temperature, Tm(P), is derived in terms of the bulk modulus, Grüneisen parameter, and their first derivative with pressure. It is used to compute Tm(P) for iron for pressures ranging up to 350 GPa at conditions relevant to the Earth's core. The computed results are in excellent agreement with the values obtained from first principle calculations.

Original languageEnglish
Pages (from-to)395-401
Number of pages7
JournalInternational Journal of Thermophysics
Volume34
Issue number3
DOIs
Publication statusPublished - Mar 2013

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Earth core
pressure dependence
melting
iron
bulk modulus
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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title = "Pressure dependence of melting temperature of iron at the earth's core conditions",
abstract = "A semi-empirical relation to compute the pressure dependence of the melting temperature, Tm(P), is derived in terms of the bulk modulus, Gr{\"u}neisen parameter, and their first derivative with pressure. It is used to compute Tm(P) for iron for pressures ranging up to 350 GPa at conditions relevant to the Earth's core. The computed results are in excellent agreement with the values obtained from first principle calculations.",
author = "Sayyadul Arafin and Singh, {Ram N.} and George, {Abraham K.}",
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AU - Singh, Ram N.

AU - George, Abraham K.

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N2 - A semi-empirical relation to compute the pressure dependence of the melting temperature, Tm(P), is derived in terms of the bulk modulus, Grüneisen parameter, and their first derivative with pressure. It is used to compute Tm(P) for iron for pressures ranging up to 350 GPa at conditions relevant to the Earth's core. The computed results are in excellent agreement with the values obtained from first principle calculations.

AB - A semi-empirical relation to compute the pressure dependence of the melting temperature, Tm(P), is derived in terms of the bulk modulus, Grüneisen parameter, and their first derivative with pressure. It is used to compute Tm(P) for iron for pressures ranging up to 350 GPa at conditions relevant to the Earth's core. The computed results are in excellent agreement with the values obtained from first principle calculations.

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JF - International Journal of Thermophysics

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