Strong to fragile transition in a model of liquid silica

Preprint English OPEN
Barrat, Jean-Louis; Badro, James; Gillet, Philippe;
(1996)
  • Subject: Condensed Matter - Materials Science

The transport properties of an ionic model for liquid silica at high temperatures and pressure are investigated using molecular dynamics simulations. With increasing pressure, a clear change from "strong" to "fragile" behaviour (according to Angell's classification of g... View more
  • References (13)
    13 references, page 1 of 2

    [1] B.W. van Beest, G.J. Kramer, R.A. van Santen, ”Force fields for silicas and aluminophosphates based on abinitio calculations.” Phys, Rev. Lett. 64, 1955 (1990)

    [2] C.A. Angell, ”Strong and fragile liquids”, in ”Relaxation in Complex Systems”, (K. Ngai, G.B. Wright eds), US Dpt of Commerce, Springfield (1985)

    [3] W. G¨otze, L. Sj¨ogren, ”Relaxation processes in supercooled liquids.” Reports on progress in Physics, 55, 241 (1992)

    [4] C.A. Angell, P.A. Cheeseman, S. Tammadon, ”Pressure enhancement of ion mobilities in liquid silicates from computer simulation studies” Science, 218, 885 (1982)

    [5] J.L. Barrat, M.L. Klein, ”Molecular dynamics simulations of supercooled liquids near the glass transition.” Ann. Rev. Phys. Chem., 42, 23 (1991)

    [6] S. Tsuneyuki, M. Tsukada, H. Aoki, Y. Matsui Phys. Rev. Lett. 61, 869 (1988)

    [7] R.G. Dellavalle, H.C. Andersen ”Test of a pairwise additive ionic potential model for silica.” J. Chem. Phys. 97, 2682 (1992)

    [8] K. Vollmayr, W. Kob, K. Binder, ”Cooling rate effects in amorphous silica: a computer simulation study”, preprint 1996

    [9] J. Badro. J-L. Barrat, P. Gillet, ”Numerical simulation of alpha-quartz under nonhydrostatic compression - memory glass and five-coordinated crystalline phases.” Phys. Rev. Lett. 76, 772 (1996)

    [10] J.S. Tse, D.D. Klug, ”The structure and dynamics of silica polymorphs using a 2-body effective potential model.” J. Chem. Phys. 95, 9176 (1991)

  • Metrics
    No metrics available
Share - Bookmark