Thermal equation of state to 33.5 GPa and 1673 K and thermodynamic properties of tungsten

A comprehensive P-V-T dataset for bcc-tungsten was obtained for pressures up to 33.5 GPa and temperatures 300–1673 K using MgO and Au pressure scales. The thermodynamic analysis of these data was performed using high-temperature (HT) and Mie-Grüneisen-Debye (MGD) relations combined with the Vinet eq...

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Bibliographic Details
Published in:Journal of applied physics 2013-04, Vol.113 (13)
Main Authors: Litasov, Konstantin D., Gavryushkin, Pavel N., Dorogokupets, Peter I., Sharygin, Igor S., Shatskiy, Anton, Fei, Yingwei, Rashchenko, Sergey V., Seryotkin, Yury V., Higo, Yiji, Funakoshi, Kenichi, Ohtani, Eiji
Format: Article
Language:English
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Summary:A comprehensive P-V-T dataset for bcc-tungsten was obtained for pressures up to 33.5 GPa and temperatures 300–1673 K using MgO and Au pressure scales. The thermodynamic analysis of these data was performed using high-temperature (HT) and Mie-Grüneisen-Debye (MGD) relations combined with the Vinet equations of state (EOS) for room-temperature isotherm and the newly proposed Kunc-Einstein (KE) EOS. The KE EOS allowed calibration of W thermodynamic parameters to the pressures of at least 300 GPa and temperatures up to 4000 K with minor uncertainties (
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4799018