Journal of Materials Science

, Volume 4, Issue 12, pp 1029–1038 | Cite as

Mechanical strength and surface microstructure of partially crystallised glasses

  • P. W. McMillan
  • B. P. Hodgson
  • R. E. Booth
Papers

Abstract

The influence on the mechanical strength of lithia-silica glasses of heat-treatment in the temperature range (400 to 600° C), where the degree of crystallisation is small, has been studied. It was shown for a binary Li2O-SiO2 glass that heat-treatment led to a significant increase in the mechanical strength and that similar but less marked effects were observed for a Li2O-SiO2-P2O5 glass. From observations of the effects of abrasion upon the mechanical strength of the heat-treated glass it appeared that the strengthening effect arose from a change in surface structure of the glass. Examination by electron microscopy and X-ray diffraction revealed that a surface layer of lithium silicate crystals is formed during heat-treatment. The mechanical properties are discussed in relation to the surface structure of the glass.

Keywords

Polymer Microstructure Microscopy Electron Microscopy Mechanical Property 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. W. Mcmillan and G. Partridge, Proc. Brit. Ceram. Soc. 3 (1965) 241.Google Scholar
  2. 2.
    S. V. Phillips and P. W. Mcmillan, Glass Tech. 6 (1965) 46.Google Scholar
  3. 3.
    F. M. Ernsberger, “Advances in Glass Technology” (Plenum Press, New York, 1962) p. 511.Google Scholar

Copyright information

© Chapman and Hall Ltd 1969

Authors and Affiliations

  • P. W. McMillan
    • 1
  • B. P. Hodgson
    • 1
  • R. E. Booth
    • 1
  1. 1.Nelson Research CentreEnglish Electric Co LtdStaffordUK

Personalised recommendations