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Equation of state and thermal stability of Al3BC |
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| Authors: | Vladimir L. Solozhenko Elena G. Solozhenko |
| Affiliation: | a LPMTM-CNRS, Institut Galilée, Université Paris Nord, 99, av. J.B. Clément, F-93430 Villetaneuse, France b Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Kiev 04074, Ukraine c Hamburger Synchrotronstrahlungslabor (HASYLAB-DESY), D-22607 Hamburg, Germany |
| Abstract: | The lattice parameters of Al3BC have been measured up to 5 GPa at ambient temperature using energy-dispersive X-ray powder diffraction with synchrotron radiation. A fit to the experimental p-V data using Birch-Murnaghan equation of state gives values of the Al3BC bulk modulus 116(4) GPa and its first pressure derivative 9(2). In the 1.6-4.8 GPa range at temperatures above 1700 K Al3BC undergoes incongruent melting that results in the formation of Al3BC3, AlB2 and liquid aluminum. |
| Keywords: | 61.10.Eq 64 64.30.+t |
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