Abstract
Metastable cubic diamond has been found in the structure of solid carbon obtained by quenching of a liquid phase at a pressure (0.012 GPa) much lower than that corresponding to the existence of stable diamond. It is suggested that this metastable diamond is formed as a result of the recalescence of supercooled liquid carbon to the melting point (T dm) of metastable diamond due to a lower energy barrier for the formation of diamond as compared to that of graphite. A comparison between the calculated Gibbs energies of metastable phases provided an estimate of T dm = 4160 ± 50 K. For the first time, metastable continuations of the curve of diamond melting at pressures of up to 0.012 GPa are constructed on the phase diagrams of carbon (according to various published data) using analytical curves described by a two-parametric Simon equation.
Similar content being viewed by others
References
A. Yu. Basharin, V. S. Dozhdikov, V. T. Dubinchuk, et al., Pis’ma Zh. Tekh. Fiz. 35(9), 84 (2009) [Tech. Phys. Lett. 35, 428 (2009)].
V. P. Veiko, M. N. Libenson, G. G. Chervyakov, and E. B. Yakovlev, in Interaction of Laser Radaitiom with Matter, Ed. by V. I. Konov (Fizmatlit, Moscow, 2008), p. 211 [in Russian].
S. Y. Chung, Y. M. Kim, J. G. Kim, and Y. J. Kim, Nature Phys. 5, 68 (2009).
L. V. Gurvich, I. V. Veyts, and C. B. Alcock, Thermodynamic Properties of Individual Substances (Hemisphere Publishing Corp., 1990), Vol. 2, Part 2.
A. P. Babichev et al., Physical Quantities ( A Hamdbook) (Énergoatomizdat, Moscow, 1991) [in Russian].
A. I. Savvatimskiy, Carbon 43, 1115 (2005).
D. Herlach et al., Metastable Solids from Undercooled Melts (Elsevier, 2007).
V. P. Skripov and M. Z. Faizulin, Vapor-Liquid Phase Transitions and Thermodynamic Likelihood (Fizmatlit, Moscow, 2003) [in Russian).
F. P. Bundy, W. A. Bassett, et al., Carbon 34, 141 (1996).
J. N. Glosli and F. H. Ree, J. Chem. Phys. 110, 441 (1999).
L. M. Ghiringhelli, C. Valeriani, et al., Mol. Phys. 106, 2011 (2008).
X. Wang, S. Scandolo, and R. Car, Phys. Rev. Lett. 95, 185701 (2005).
A. A. Correa, S. A. Bonev, and G. Galli, Proc. Natl. Acad. Sci. 103, 1204 (2006).
A. I. Savvatimskiy, J. Phys.: Cond. Matter. 20, 114 112 (2008).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.Yu. Basharin, V.S. Dozhdikov, A.V. Kirillin, M.A. Turchaninov, L.R. Fokin, 2010, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2010, Vol. 36, No. 12, pp. 39–47.
Rights and permissions
About this article
Cite this article
Basharin, A.Y., Dozhdikov, V.S., Kirillin, A.V. et al. Phase diagram with a region of liquid carbon-diamond metastable states. Tech. Phys. Lett. 36, 559–562 (2010). https://doi.org/10.1134/S1063785010060210
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063785010060210