Journal of Materials Science

, Volume 23, Issue 9, pp 3168–3172 | Cite as

Delayed elastic recovery of hardness indentations in polyethylene

  • V. Lorenzo
  • J. M. Pereña
  • J. G. Fatou
  • J. A. Mendez-Morales
  • J. A. Aznarez
Article

Abstract

The depth of Vickers microindentations in high density, low density and linear low density polyethylenes has been studied by two wave interferometry. The evolution of the delayed depth recovery is explained in terms of the Burgers model of viscoelastic behaviour and the numerical parameters associated with the model are related to the crystallinity, elastic modulus and yield stress of the polyethylenes studied.

Keywords

Polymer Polyethylene Elastic Modulus Viscoelastic Behaviour Numerical Parameter 

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References

  1. 1.
    V. Lorenzo, J. M. Pereña, J. G. Fatou, J. A. Méndez-Morales and J. A. Aznarez, J. Mater Sci. Lett. 6 (1987) 756.Google Scholar
  2. 2.
    B. Martín, J. M. Pereña, J. M. Pastor and J. A. De Saja, ibid. 5 (1986) 1027.Google Scholar
  3. 3.
    P. S. Francis, R. Cooke, Jr and J. H. Elliot, J. Polym. Sci. 31 (1957) 453.Google Scholar
  4. 4.
    Q. A. Trementozzi, ibid. 31 (1957) 887.Google Scholar
  5. 5.
    R. Chiang and P. J. Flory, J. Amer. Chem Soc. 83 (1961) 2057.Google Scholar
  6. 6.
    V. Lorenzo, J. M. Pereña and J. G. Fatou, unpublished results.Google Scholar
  7. 7.
    B. R. Lawn and V. R. Howes, J. Mater. Sci. 16 (1981) 2745.Google Scholar
  8. 8.
    M. Françon, “Progress in Microscopy”, Vol 9 (Pergamon Press, Oxford, 1961) Chap. VIII.Google Scholar
  9. 9.
    F. J. Baltá Calleja, Adv. Polym. Sci. 66 (1985) 117.Google Scholar
  10. 10.
    P. Eyerer and G. Lang, Kunststoffe 62 (1972) 222.Google Scholar
  11. 11.
    L. Bowman and M. Bevis, Colloid Polym. Sci. 255 (1977) 954.Google Scholar
  12. 12.
    L. E. Nielsen, “Mechanical Properties of Polymers and Composites” (Marcel Dekker, New York, 1974).Google Scholar
  13. 13.
    R. Popli and L. Mandelkern, J. Polym. Sci., Polym. Phys. Ed. 25 (1987) 441.Google Scholar
  14. 14.
    C. L. Choy and W. P. Leung, ibid. 23 (1985) 1759.Google Scholar
  15. 15.
    C. L. Choy and W. P. Leung, J. Appl. Polym. Sci. 32 (1986) 5883.Google Scholar
  16. 16.
    E. Breval and N. H. Macmillan, J. Mater. Sci. Lett. 4 (1985) 741.Google Scholar

Copyright information

© Chapman and Hall Ltd 1988

Authors and Affiliations

  • V. Lorenzo
    • 1
  • J. M. Pereña
    • 2
  • J. G. Fatou
    • 2
  • J. A. Mendez-Morales
    • 3
  • J. A. Aznarez
    • 3
  1. 1.E. T. S. de Ingenieros IndustrialesMadridSpain
  2. 2.Instituto de Plásticos y CauchoMadridSpain
  3. 3.Instituto de OpticaMadridSpain

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