Reaction of rhenium and carbon at high pressures and temperatures

Erick A. Juarez-Arellano; Björn Winkler; Alexandra Friedrich; Dan J. Wilson; Monika Koch-Müller; Karsten Knorr; Sven C. Vogel; James J. Wall; Helmut Reiche; Wilson Crichton; Mayahuel Ortega-Aviles; Miguel Avalos-Borja

doi:10.1524/zkri.2008.0054

Published by De Gruyter (O) September 25, 2009

Reaction of rhenium and carbon at high pressures and temperatures

Erick A. Juarez-Arellano , Björn Winkler , Alexandra Friedrich , Dan J. Wilson , Monika Koch-Müller , Karsten Knorr , Sven C. Vogel , James J. Wall , Helmut Reiche , Wilson Crichton , Mayahuel Ortega-Aviles and Miguel Avalos-Borja

From the journal Zeitschrift für Kristallographie - Crystalline Materials

https://doi.org/10.1524/zkri.2008.0054

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Abstract

A study of the reaction of rhenium with carbon at high-(P, T) conditions up to P_max = 67 GPa and T_max = 3800 K is presented. A hexagonal ReC_x was identified as the stable phase at high-(P, T) conditions. A composition of ReC_0.5 is proposed. No evidence for a cubic ReC polymorph with rocksalt structure, as suggested in the literature, or for any other phase was found at the P-T conditions explored. A preliminary P-T rhenium-carbon phase diagram has been derived and properties such as bulk moduli and elastic stiffness coefficients were obtained.

Keywords: Carbides; High pressures and temperatures; Synchrotron radiation; Analytical electron microscopy; Density functional theory (DFT)

^* Correspondence address: Universität Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Deutschland, arellano@kristall.uni-frankfurt.de

Published Online: 2009-9-25

Published in Print: 2008-8-1

Reaction of rhenium and carbon at high pressures and temperatures

Abstract

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