Silica: Difference between revisions
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Carl McBride (talk | contribs) m (Moved a reference to models.) |
Carl McBride (talk | contribs) m (Added a new reference re critical point.) |
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==Phase diagram== | ==Phase diagram== | ||
#[http://dx.doi.org/10.1103/PhysRevE.70.061507 Ivan Saika-Voivod, Francesco Sciortino, Tor Grande, and Peter H. Poole "Phase diagram of silica from computer simulation", Physical Review E '''70''' 061507 (2004)] | #[http://dx.doi.org/10.1103/PhysRevE.70.061507 Ivan Saika-Voivod, Francesco Sciortino, Tor Grande, and Peter H. Poole "Phase diagram of silica from computer simulation", Physical Review E '''70''' 061507 (2004)] | ||
====Critical point==== | |||
#[http://dx.doi.org/10.1063/1.3023151 Emanuela Bianchi, Piero Tartaglia, and Francesco Sciortino "Theoretical and numerical estimates of the gas-liquid critical point of a primitive model for silica", Journal of Chemical Physics '''129''' 224904 (2008)] | |||
==Temperature of maximum density== | ==Temperature of maximum density== | ||
Silica has a temperature of [[Liquid phase density maximum |maximum density]] (TMD) | Silica has a temperature of [[Liquid phase density maximum |maximum density]] (TMD) | ||
Revision as of 17:33, 13 December 2008
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Silica (Silicon dioxide) is a very interesting system, sharing many similarities with the physical properties of water.
Models
- B. W. H. van Beest, G. J. Kramer and R. A. van Santen "Force fields for silicas and aluminophosphates based on ab initio calculations", Physical Review Letters 64 pp. 1955-1958 (1990)
- P. Tangney and S. Scandolo "An ab initio parametrized interatomic force field for silica", Journal of Chemical Physics 117 8898 (2002)
- Matthew H. Ford, Scott M. Auerbach and P. A. Monson "On the mechanical properties and phase behavior of silica: A simple model based on low coordination and strong association", Journal of Chemical Physics 121 8415 (2004)
Phase diagram
Critical point
Temperature of maximum density
Silica has a temperature of maximum density (TMD)
- Peter H. Poole, Mahin Hemmati, and C. Austen Angell "Comparison of Thermodynamic Properties of Simulated Liquid Silica and Water", Physical Review Letters 79 pp. 2281-2284 (1997)
- M. Scott Shell, Pablo G. Debenedetti, and Athanassios Z. Panagiotopoulos "Molecular structural order and anomalies in liquid silica", Physical Review E 66 011202 (2002)
Polymorphism
Silica has a number of crystal structures.
Polyamorphism
Silica has a polyamorphic (liqid-liquid) phase transition.
- G. D. Mukherjee, S. N. Vaidya, and V. Sugandhi "Direct Observation of Amorphous to Amorphous Apparently First-Order Phase Transition in Fused Quartz", Physical Review Letters 87 195501 (2001)
- Ivan Saika-Voivod, Peter H. Poole and Francesco Sciortino "Fragile-to-strong transition and polyamorphism in the energy landscape of liquid silica", Nature 412 pp. 514-517 (2001)