Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Refractive index and density of Li-, Na- and K-germanosilicate glasses

Abstract

Refractive index and density measurements in the ternary systems Li2O-SiO2-GeO2, Na2O-SiO2-GeO2 and K2O-SiO2-GeO2 are given. Molar refraction data are correlated to the structure of these glasses. In the Li2O-SiO2-GeO2 system, phase separation occurs which can be suppressed by rapid cooling. In the systems Na2O-SiO2-GeO2 and K2O-SiO2-GeO2 no such phase separation is observed; in these systems the molar refraction data indicate that, contrary to the Li2O-SiO2-GeO2 system, the four-six co-ordination change of Ge4+ is not affected by the presence of SiO2 as second network former.

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

References

  1. 1.

    H. Scholze, “Glas” (Vieweg, Braunschweig, 1965).

  2. 2.

    K. S. Evstrop'ev and A. O. Ivanov, “Advances in Glass Technology”, Vol. 2 (Plenum Press, New York, 1963) pp. 79–85.

  3. 3.

    M. Krisna Murthy and J. Ip, Nature 201 (1964) 285.

  4. 4.

    H. M. J. M. Van Ass, R. G. Gossink and P. J. W. Severin, Electr. Letters 12 (1976) 369.

  5. 5.

    C. A. Faick and B. Fonoroff, J. Res. Nat. Bur. Stand. 32 (1944) 67.

  6. 6.

    Y. Y. Huang, A. Sarkar, P. C. Schulz, J. Non. Cryst. Solids 27 (1978) 29.

  7. 7.

    S. K. Dubrovo and U. A. Schmidt, Zh. Prikl. Khim. 32 (1959) 742.

  8. 8.

    G. W. Morey and H. E. Merwin, J. Opt. Soc. Amer. 22 (1932) 632.

  9. 9.

    L. N. Urusovskaya, Zh. Prikl. Khim. 33 (1960) 1992.

  10. 10.

    V. J. Rao, J. Amer. Ceram. Soc. 46 (1963) 113.

  11. 11.

    U. A. Schmidt, and Z. D. Alekseeva, Zh. Prikl. Khim. 37 (1964) 2299.

  12. 12.

    H. Verwey, H. Van Den Boom and R. E. Breemer, J. Amer. Ceram. Soc. 60 (1977) 529.

  13. 13.

    S. S. Jaswal and T. P. Scharma, J. Phys. Chem. Solids 34 (1973) 509.

  14. 14.

    A. M. Efimov, E. K. Mazurina, Sov. J. Glass Phys. Chem. R66 (1977) 33.

  15. 15.

    M. Krishna Murthy and Y. Aguayo, J. Amer. Ceram. Soc. 47 (1964) 444.

  16. 16.

    H. Verwey, J. H. J. M. Buster, J. Non-Cryst. Solids. (submitted).

  17. 17.

    H. Vollenkle, A. Wittmann and H. Nowotny, Mh. Chem. 102 (1971) 361.

  18. 18.

    N. Ingri, G. Lundgren, Acta Chem. Scand. 17 (1963) 617.

  19. 19.

    A. Wittmann and P. Papamantellos, Mh. Chem. 91 (1960) 855

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Verweij, H., Buster, J.H.J.M. & Remmers, G.F. Refractive index and density of Li-, Na- and K-germanosilicate glasses. J Mater Sci 14, 931–940 (1979). https://doi.org/10.1007/BF00550724

Download citation

Keywords

  • Polymer
  • SiO2
  • Refractive Index
  • Refraction
  • Phase Separation