Journal of Materials Science

, Volume 16, Issue 6, pp 1567–1578 | Cite as

Temperature-strain rate dependance of compressive strength and damage mechanisms in aluminium oxide

  • James Lankford
Papers

Abstract

The results of compression tests of Al3O3 performed over a wide range of temperatures and strain rates are interpreted in terms of dominant damage mechanisms. It is shown that compressive failure in Al2O3 is caused by one of three different mechanisms, each based on tensile (Mode I) growth of predominantly axial microcracks, and each characteristic of a specific temperature-strain rate regime. The concepts developed should be applicable to other strong ceramics.

Keywords

Oxide Polymer Aluminium Al2O3 Compressive Strength 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. Lankford,J. Mater. Sci. 12 (1977) 2195.CrossRefGoogle Scholar
  2. 2.
    J. Lankford andD. L. Davidson, Proceedings of the Third International Conference on the Mechanical Behaviour of Materials, Vol. 3 (University of Waterloo Press, Ontario, 1979) p. 35.Google Scholar
  3. 3.
    J. Lankford,J. Mater. Sci. 13 (1978) 351.CrossRefGoogle Scholar
  4. 4.
    D. E. Munson andR. J. Lawrence,J. Appl. Phys. 50 (1979) 6272.CrossRefGoogle Scholar
  5. 5.
    A. G. Evans, M. Linzer andL. R. Russell,Mater. Sci. Eng. 15 (1974) 253.CrossRefGoogle Scholar
  6. 6.
    O. Johari andN. M. Parikh, in “Fracture Mechanics of Ceramics”, Vol. 1, edited by R. C. Bradt, D. P. H. Hasselman and F. F. Lange (Plenum Press, New York, 1974) p. 399.Google Scholar
  7. 7.
    P. Tapponier andW. F. Brace,Int. J. Roch Mech. Min. Sci. & Geomech. Abstr. 13 (1976) 103.CrossRefGoogle Scholar
  8. 8.
    B. T. Brady,Int. J. Rock Mech. Min. Sci. 8 (1971) 357.CrossRefGoogle Scholar
  9. 9.
    R. L. Kranz,Int. J. Roch Mech. Min. Sci. & Geomech. Abstr. 16 (1979) 23.CrossRefGoogle Scholar
  10. 10.
    E. G. Bombolakis,Tektonophysics 1 (1964) 343.CrossRefGoogle Scholar
  11. 11.
    S. Kobayashi,J. Soc. Mater. Sci. Jap. 20 (1971) 164.Google Scholar
  12. 12.
    A. G. Evans andS. M. Wiederhorn,Int. J. Fract. 10 (1974) 379.CrossRefGoogle Scholar
  13. 13.
    K. C. Radford andG. R. Terwilliger,J. Amer. Ceram. Soc. 58 (1975) 274.Google Scholar
  14. 14.
    A. G. Evans,J. Mater. Sci. 7 (1972) 1137.CrossRefGoogle Scholar
  15. 15.
    A. G. Evans andF. F. Lange,ibid 10 (1975) 1659.CrossRefGoogle Scholar
  16. 16.
    H. L. Marcus andM. E. Fine,J. Amer. Ceram. Soc. 55 (1972) 568.Google Scholar
  17. 17.
    W. C. Johnson andD. F. Stein,ibid 58 (1975) 485.Google Scholar
  18. 18.
    W. C. Johnson,Met. Trans. A 8A (1977) 1413.Google Scholar
  19. 19.
    D. R. Clarke,J. Amer. Ceram. Soc. 63 (1980) 339.Google Scholar
  20. 20.
    W. C. Johnson, private communication (1979).Google Scholar
  21. 21.
    A. G. Evans andA. Rana,Acta Met. 28 (1980) 129.CrossRefGoogle Scholar
  22. 22.
    J. B. Wachtman andD. G. Lam, Jr,J. Amer. Ceram. Soc. 42 (1959) 254.Google Scholar
  23. 23.
    K. F. A. Walles,Proc. Brit. Ceram. Soc. 15 (1970) 157.Google Scholar
  24. 24.
    D. E. Grady andJ. Lipkin,Geophys. Res. Letters 7 (1980) 255.Google Scholar
  25. 25.
    D. E. Grady andM. E. Kipp, “Oil Shale Fracture and Fragmentation at High Rates of Loading”, Sandia Report SAND-79-0563C (1979).Google Scholar
  26. 26.
    D. E. Grady andR. E. Hollenbach, “Rate Controlling Processes in the Brittle Failure of Rock”, Sandia Report SAND-76-0659 (1977).Google Scholar
  27. 27.
    D. E. Grady andM. E. Kipp,Int. J. Rock Mech. Min. Sci. & Geophys. Abstr. 16 (1979) 293.CrossRefGoogle Scholar
  28. 28.
    W. Jannach,Int. J. Rock Mech. Min. Sci. & Geo mech. Abstr. 14 (1977) 209.CrossRefGoogle Scholar
  29. 29.
    J. Lankford, to be published.Google Scholar
  30. 30.
    Idem, J. Amer. Ceram. Soc. 62 (1979) 310.CrossRefGoogle Scholar

Copyright information

© Chapman and Hall Ltd 1981

Authors and Affiliations

  • James Lankford
    • 1
  1. 1.Department of Materials SciencesSouthwest Research InstituteSan AntonioUSA

Personalised recommendations