Journal of Materials Science

, Volume 30, Issue 20, pp 5223–5227 | Cite as

The minimum volume fraction of SiC reinforcement required for strength improvement of an Al-Cu based composite

  • S. Qin
  • M. Gupta


Metal matrix composites (MMCs) represent a unique class of materials with an ability to blend the properties of the ceramics with those of metals/alloys. The incorporation of hard and brittle ceramics phase is widely carried out in order to improve on the strength and wear properties of metallic matrices. In related studies carried out on spray-processed materials, it was observed that the incorporation of the ceramic particulates need not always increase the strength of metallic matrix unless they exceed a certain critical volume fraction. In order to explain these rather unusual results, a theoretical model was formulated to determine the critical volume fraction that may be required in order to realize the improvement in the ultimate tensile strength of the metallic matrices. The model proposed here is based on the equivalent inclusion method as related to the micromechanics of composites. The results derived from the model are interpreted with a view to establishing the link between the theoretical results obtained with the experimental findings.


Tensile Strength Ultimate Tensile Strength Metal Matrix Composite Ceramic Particulate Wear Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    J. P. Hirth, Scripta Metall. Mater. 25 (1991) 1.CrossRefGoogle Scholar
  2. 2.
    P. S. Gillman, J. Metals 43 (8) (1991) 7.Google Scholar
  3. 3.
    Y. Wu and E. J. Lavernia, Scripta Metall. Mater. 27 (1992) 173.CrossRefGoogle Scholar
  4. 4.
    V. C. Nardone and K. M. Prewo, Scripta Metall. 20 (1986) 43.CrossRefGoogle Scholar
  5. 5.
    R. J. Arsenault, Scripta Metall. Mater. 25 (1991) 2617.CrossRefGoogle Scholar
  6. 6.
    W. S. Miller and F. J. Humphreys, ibid. 25 (1991) 33.CrossRefGoogle Scholar
  7. 7.
    M. Taya, K. E. Lulay and D. J. Lloyd, Acta Metall. Mater. 39 (1991) 73.CrossRefGoogle Scholar
  8. 8.
    J. White, I. G. Palmer, I. R. Hughes and S. A. Court, in Proceedings, “Aluminum-Lithium Alloys V”, Williamsburg, Virginia, March 1989, Vol. 3, edited by T. H. Sanders Jr and E. A. Srarke Jr (Materials and Components Engineering Publication, Edgbaston, UK, 1989) p. 1635.Google Scholar
  9. 9.
    A. R. E. Singer and S. Ozbek, Powder Metall. 28 (1985) 72.CrossRefGoogle Scholar
  10. 10.
    I. A. Ibrahim, F. A. Mohamed and E. J. Lavernia, in “Advanced aluminium and magnesium alloys”, edited by T. Khan and G. Effenberg (ASM International, Amsterdam, 1989) p. 745.Google Scholar
  11. 11.
    Y. Wu and E. J. Lavernia, J. Metals 43 (8) (1991) 16.Google Scholar
  12. 12.
    C. M. Friend, J. Mater. Sci. 22 (1987) 3005.CrossRefGoogle Scholar
  13. 13.
    M. Gupta, K. Bowo. E. J. Lavernia and J. C. Earthman, Scripta Metall. Mater. 28 (1993) 1053.CrossRefGoogle Scholar
  14. 14.
    B. K. Prasad, J. Mater. Sci. 28 (1993) 100.CrossRefGoogle Scholar
  15. 15.
    Z. Xiao, PhD dissertation, Rutgers University, New Jersey (1991).Google Scholar
  16. 16.
    J. D. Eshelby, Proc. R. Soc. Lond. 241A (1957) 376.Google Scholar
  17. 17.
    T. Mura, “Micromechanics of Defects in Solids”, 2nd Edn (Martinus Nijhoff, The Hague, The Netherlands, 1987).CrossRefGoogle Scholar
  18. 18.
    N. Christman and S. Suresh, Acta Metall. 36 (1988) 1691.CrossRefGoogle Scholar
  19. 19.
    M. Gupta, T. S. Srivatsan, F. Mohamed and E. J. Lavernia, J. Mater. Sci. 28 (1993) 2245.CrossRefGoogle Scholar
  20. 20.
    D. L. McDanels, Metall. Trans. A 16 (1985) 1105.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • S. Qin
    • 1
  • M. Gupta
    • 1
  1. 1.Department of Mechanical and Production EngineeringNational University of SingaporeSingaporeSingapore

Personalised recommendations