Skip to main content
SpringerLink
Log in

Temperature dependence of thermal diffusion in lithium borate melts from light scattering data

  • Published:
Glass Physics and Chemistry Aims and scope Submit manuscript

Abstract

It has been established that a constant temperature gradient increases the intensity of light scattering by lithium borate melts containing 1.2 and 1.6 mol % Li2O. It has been shown that the change of the light scattering intensity is characterized by some general regularities that are in accord with the predictions of the theory of light scattering by liquids in an inhomogeneous temperature field. Using the obtained experimental data and the conclusions of this theory, the thermal diffusion coefficients have been determined and the temperature coefficients of the diffusion process have been calculated. It has been found that the mass thermal diffusion coefficients of the studied melts almost coincide in magnitude, and the thermal coefficients of the diffusion processes are close to the activation energy of the viscous flow of boron oxide. The obtained results indicate the applicability of the light scattering method for determination of the thermal diffusion coefficients in oxide melts.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Bokov, N.A., Thermal Diffusion in a Lithium Borate Melt from Data on Light Scattering, Glass Phys. Chem., 2011, vol. 37, no. 2, pp. 120–125.

    Article  CAS  Google Scholar 

  2. Velasco, R.M. and Garcia Colin, L.S., Viscoheat Coupling in Binary Mixture, J. Phys. A: Math. Gen., 1991, vol. 24, no. 5, pp. 1007–1015.

    Article  Google Scholar 

  3. Sengers, J.V., Gammon, R.W., and Ortiz de Zárate, J.M., Thermal-Diffusion Driven Concentration Fluctuations in a Polymer Solution, in Computational Studies, Nanotechnology, and Solution Thermodynamics of Polymer Systems, Dadmun, M., Noid, D., Sumpter, B., and Melnichenko, Y., Eds., New York: Kluwer, 2000, pp. 37–44.

    Google Scholar 

  4. Sengers, J.V. and Ortiz de Zárate, J.M., in Nonequilibrium Concentration Fluctuations in Binary Liquid Systems Induced by Soret Effect, Köhler, W. and Viegand, S., Eds., Berlin: Springer-Verlag, 2002, LNP 584, pp. 121–145.

    Google Scholar 

  5. Bokov, N.A., Experimental Investigation of the Influence of a Temperature Gradient on the Intensity of Light Scattering in Borate Melts, Glass Phys. Chem., 2010, vol. 36, no. 2, pp. 158–165.

    Article  CAS  Google Scholar 

  6. Bokov, N.A., Andreev, N.S., and Shakhmatkin, B.A., Light Scattering Investigation of the Fluctuations in Melts of Alkali Borate Glasses, Fiz. Khim. Stekla, 1989, vol. 15, no. 6, pp. 832–837.

    CAS  Google Scholar 

  7. Macedo, P.B. and Napolitano, A., Inadequacies of Viscosity Theories for B2O3, J. Chem. Phys., 1968, vol. 49, no. 4, pp. 1887–1895.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. I.V. Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034, Russia

    N. A. Bokov

Authors
  1. N. A. Bokov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to N. A. Bokov.

Additional information

Original Russian Text © N.A. Bokov, 2012, published in Fizika i Khimiya Stekla.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bokov, N.A. Temperature dependence of thermal diffusion in lithium borate melts from light scattering data. Glass Phys Chem 38, 361–365 (2012). https://doi.org/10.1134/S1087659612040050

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1087659612040050

Keywords

Search

Navigation