publication . Article . Preprint . 1997

Melting and pressure-induced amorphization of quartz

James Badro; Philippe Gillet; Jean-Louis Barrat;
Open Access
  • Published: 16 Jul 1997 Journal: Europhysics Letters (EPL), volume 42, pages 643-648 (issn: 0295-5075, eissn: 1286-4854, Copyright policy)
  • Publisher: IOP Publishing
  • Country: Switzerland
Abstract
It has recently been shown that amorphization and melting of ice were intimately linked. In this letter, we infer from molecular dynamics simulations on the SiO2 system that the extension of the quartz melting line in the metastable pressure-temperature domain is the pressure-induced amorphization line. It seems therefore likely that melting is the physical phenomenon responsible for pressure induced amorphization. Moreover, we show that the structure of a "pressure glass" is similar to that of a very rapidly (1e+13 to 1e+14 kelvins per second) quenched thermal glass.
Persistent Identifiers
Subjects
free text keywords: General Physics and Astronomy, Condensed Matter - Materials Science, Melting line, Quenching, Materials science, Thermal, Metastability, Quartz, Instability, Thermodynamics
Related Organizations
29 references, page 1 of 2

[1] O. Mishima. Nature, 384:546-549, 1996.

[2] O. Mishima, L.D. Calvert, and E. Whalley. Nature, 310:393-395, 1984.

[3] P. Richet and Ph. Gillet. Eur. J. Mineral., in press, 1997.

[4] R.J. Hemley. In High-Pressure research in mineral physics, Mineral Physics 2. Terra Scientific Publishing Company - AGU, 1987.

[5] C. Meade, R.J. Hemley, and H.K. Mao. Phys. Rev. Lett., 69:1387-1390, 1992.

[6] J.-P. Iti´e, A. Polian, G. Calas, J. Petiau, A. Fontaine, and H. Tolentino. Phys. Rev. Lett., 63:389-401, 1989.

[7] J.S. Tse and D.D. Klug. Phys. Rev. Lett., 67:3559, 1991.

[8] J.S. Tse and D.D. Klug. Science, 255:1559-1561, 1992.

[9] N. Binggeli, N. Troullier, J.-L. Martins, and J.R. Chelikowsky. Phys. Rev. B, 44:4471, 1991.

[10] N. Binggeli and J.R. Chelikowsky. Phys. Rev. Lett., 69:2220-2223, 1992.

[11] L.E. McNiel and M. Grimsditch. Phys. Rev. Lett., 68:83-85, 1992.

[12] G.W. Watson and S.C. Parker. Philosophical Mag. Lett., 71:59-64, 1995.

[13] N. Binggeli. Simulation of Silicas : from classical pair potentials to density functional theory, CECAM Workshop : September 15-17, 1997.

[14] J. Badro, J.-L. Barrat, and Ph. Gillet. Phys. Rev. Lett., 76:772-775, 1996.

[15] R.J. Hemley, A.P. Jephcoat, H.K. Mao, L.C. Ming, and M.H. Manghnani. Nature, 334:52-54, 1988.

29 references, page 1 of 2
Any information missing or wrong?Report an Issue