Advertisement

Crystallization Kinetics of SiO2 at High Pressures

  • V. J. Fratello
  • J. F. Hays
  • D. Turnbull

Abstract

The unusual enhancement of certain kinetic phenomena at high pressure in some Silicates has long been a source of interest. Shaw [1] noted a decrease in the viscosity of obsidian glass with pressure, though he attributed it to experimental uncertainties. Kushiro et al. [2,3] found that such a decrease clearly occurs in several Silicate melts. Uhlmann, Hays, and Turnbull [4] observed a large increase in the rate of crystallization of silica glass at high pressure. They showed that the increase scaled with the amount of water present and this might even account for the entire effect.

Keywords

Crystallization Kinetic Fuse Quartz Crystalline Layer Pyrolitic Graphite Absolute Rate Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H. R. Shaw, J. Geophys. Res. 68, 6337 (1963).CrossRefGoogle Scholar
  2. 2.
    I. Kushiro, J. Geophys. Res. 81, 6347 (1976).CrossRefGoogle Scholar
  3. 3.
    I. Kushiro, H. S. Yoder, Jr., and B. O. Mysen, J. Geophys. Res. 81, 6351 (1976).CrossRefGoogle Scholar
  4. 4.
    D. R. Uhlmann, J. F. Hays, and D. Turnbull, Physics Chem. Glasses 7, 159 (1966).Google Scholar
  5. 5.
    F. R. Boyd and J. L. England, J. Geophys. Res. 65, 741 (1960).CrossRefGoogle Scholar
  6. 6.
    W. Johannes, D. W. Chipman, J. F. Hays, P. M. Bell, H. K. Mao, R. C. Newton, A. L. Boettcher, and F. Seifert, Contrib. Mineral. Petrol. 32, 24 (1971).CrossRefGoogle Scholar
  7. 7.
    N. G. Ainslie, C. R. Morelock, and D. Turnbull, Symposium on Nucleation and Crystallization in Glasses and Melts, American Ceramic Society, Columbus, Ohio (1962), p. 97.Google Scholar

Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • V. J. Fratello
    • 1
  • J. F. Hays
    • 1
  • D. Turnbull
    • 1
  1. 1.Harvard UniversityCambridgeUSA

Personalised recommendations