Borate Glasses pp 353-367 | Cite as

Structural Determinations for Sodium Borate Glasses Using B10 and B11 NMR

  • G. E. JellisonJr.
  • P. J. Bray
Part of the Materials Science Research book series (MSR, volume 12)

Abstract

In earlier NMR studies of structure and bonding in borate glasses (1–7), the central transition (m=1/2 ↔ 1/2) of the B-11 isotope has been employed almost exclusively. Aside from its usefulness in the determination of N4, the fraction of four coordinated boron atoms, B-11 NMR has been of limited value in determining the coupling constant (Qcc) and the asymmetry parameter (n) found in the glass. This limitation is due primarily to the importance of dipolar broadening and the existence of distributions in Qcc and n. B-10 NMR, on the other hand, affords 3 advantages over the use of the central transition of B-11 NMR: 1) dipolar broadening is much less important (8); 2) the distribution of Qcc is directly obtainable from a part of the B-10 NMR spectrum (8); and 3) there exists another part of the B-10 NMR experimental spectrum that is sensitive to the distributions of n, but insensitive to distributions of Qcc (9). These features of the B-10 NMR spectrum are employed in this work for the study of glasses in the sodium borate system.

Keywords

Depression Lithium Boron Expense Borate 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. H. Silver and P. J. Bray, J. Chem. Phys., 29, 984 (1958).CrossRefGoogle Scholar
  2. 2.
    P. J. Bray and J. G. O’Keefe, Phys. Chem. Glasses 4, 37 (1963).Google Scholar
  3. 3.
    S. G. Bishop and P. J. Bray, Phys. Chem. Glasses 7, 73 (1966).Google Scholar
  4. 4.
    S. Greenblatt and P. J. Bray, Phys. Chem. Glasses 8, 213 (1967).Google Scholar
  5. 5.
    H. M. Kriz, M. J. Park, and P. J. Bray, Phys. Chem. Glasses 12, 45 (1967).Google Scholar
  6. 6.
    H. M. Kriz and P. J. Bray, J. Non-crystalline Solids 6, 27 (1971).CrossRefGoogle Scholar
  7. 7.
    W. Miiller-Warmuth, W. Poch, and G. Sielaff, Glastech. Ber. 43, 5 (1970).Google Scholar
  8. 8.
    G. E. Jellison, Jr. and P. J. Bray, Solid State Comm. 19, 517 (1976).CrossRefGoogle Scholar
  9. 9.
    G. E. Jellison, Jr., L. W. Panek, P. J. Bray, and G. Rouse, J. Chem. Phys. 66, 802 (1977).CrossRefGoogle Scholar
  10. 10.
    G. E. Jellison, Jr., S. A. Feller, and P. J. Bray, accepted for publication in J. Mag. Res.Google Scholar
  11. 11.
    J. F. Baugher, P. C. Taylor, T. Oja, and P. J. Bray, J. Chem. Phys. 50, 4914 (1969).CrossRefGoogle Scholar
  12. 12.
    P. C. Taylor, and P. J. Bray, Lineshape Manual 1969 (unpublished).Google Scholar
  13. 13.
    P. C. Taylor, and P. J. Bray, J. Mag. Res. 2, 305 (1970).CrossRefGoogle Scholar
  14. 14.
    J. Krogh-Moe, Phys. Chem. Glasses 6, 46 (1965).Google Scholar
  15. 15.
    W. L. Konijnendijk, The Structure of Borosilicate Glasses, Thesis, Philips Res. Repts. Suppl. 1975, No. 1; W. L. Konijnendijk and J. M. Stevels, J. Non-crystalline Solids 18, 307 (1975).CrossRefGoogle Scholar
  16. 16.
    R. L. Mozzi and B. E. Warren, J. Appl. Cryst. 3, 251 (1970).CrossRefGoogle Scholar
  17. 17.
    C. H. Rhee, J. Korean Phys. Soc. 4, 51 (1971).Google Scholar
  18. 18.
    A. Hyman, A. Perloff, F. Mauer, and S. Block, Acta Cryst. 22, 815 (1967).CrossRefGoogle Scholar
  19. 19.
    J. Krogh-Moe, Acta Cryst. B30, 747 (1974).CrossRefGoogle Scholar
  20. 20.
    J. Krogh-Moe, Acta Cryst. 15, 190 (1962).CrossRefGoogle Scholar
  21. 21.
    J. Krogh-Moe, Acta Cryst. B24, 179 (1968).CrossRefGoogle Scholar
  22. 22.
    J. Krogh-Moe, Acta Cryst. B30, 578 (1974).CrossRefGoogle Scholar
  23. 23.
    J. F. Baugher, H. M. Kriz, P. C. Taylor, and P. J. Bray, J. Mag. Res. 3, 415 (1970).CrossRefGoogle Scholar
  24. 24.
    J. Krogh-Moe, Phys. Chem. Glasses 3, 101 (1962).Google Scholar
  25. 25.
    T. W. Bril, Thesis, Technological University Eindoven, The Netherlands, 1975.Google Scholar
  26. 26.
    P. Beekenkamp, Philips Res. Repts. Suppl. 1966 No. 4.Google Scholar

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • G. E. JellisonJr.
    • 1
  • P. J. Bray
    • 2
  1. 1.U. S. Naval Research LaboratoryUSA
  2. 2.Brown UniversityProvidenceUSA

Personalised recommendations