Journal of Materials Science

, Volume 26, Issue 7, pp 1839–1846 | Cite as

Mechanical properties of a zircon matrix composite reinforced with silicon carbide whiskers and filaments

  • R. N. Singh


The influence of a silicon carbide whisker reinforcement on room temperature mechanical properties of a monolithic zircon ceramic and zircon composites uniaxially reinforced with silicon carbide monofilaments was studied in a flexure mode. The strength of a monolithic zircon was increased by the addition of whisker reinforcement, but the composite failure was still brittle in nature. In contrast, zircon composites reinforced with SiC whiskers and filaments showed toughened composite-like behaviour and produced higher first matrix cracking strength and toughness than the composites reinforced with only SiC filaments. In addition, the whisker reinforcement had insignificant influence on the ultimate strength of filament-reinforced composites. These results were related to changes in measured fibre-matrix interfacial properties, which indicated that composites with high first matrix cracking strength and toughness can be designed and fabricated via independently tailoring the matrix and the fibre-matrix interfacial properties.


Polymer Mechanical Property Zircon Carbide Brittle 
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  1. 1.
    R. N. Singh and A. R. Gaddipati, J. Mater. Sci. in press.Google Scholar
  2. 2.
    R. N. Singh, ibid. in press.Google Scholar
  3. 3.
    Idem., J. Amer. Ceram. Soc. 73 (1990) 2399.CrossRefGoogle Scholar
  4. 4.
    U.S. Patent No. 4 340 636 (1982).Google Scholar
  5. 5.
    M. Sutcu, J. Mater. Sci. 23 (1988) 928.CrossRefGoogle Scholar
  6. 6.
    B. Budianski, J. W. Hutchinson and A. G. Evans, J. Mech. Phys. Solids 34 (1986) 167.CrossRefGoogle Scholar
  7. 7.
    R. N. Singh, Mater. Res. Soc. Symp. Proc. 120 (1988) 259.CrossRefGoogle Scholar
  8. 8.
    M. K. Brun and R. N. Singh, Adv. Ceram. Mater. 3 (1988) 506.CrossRefGoogle Scholar
  9. 9.
    Idem., J. Amer. Ceram. Soc. 73 (1990) 2930.CrossRefGoogle Scholar
  10. 10.
    C. E. Curtis and H. G. Sowman, ibid. 36 (1953) 190.CrossRefGoogle Scholar
  11. 11.
    M. Sutcu, Acta Metall. 37 (1989) 65.CrossRefGoogle Scholar
  12. 12.
    R. N. Singh, “Influence of Thermophysical Properties on Fibre-Matrix Interfacial Shear Stress in Zircon-Silicon Carbide Composites”, in preparation.Google Scholar
  13. 13.
    Idem., J. Amer. Ceram. Soc. 72 (1989) 1764.CrossRefGoogle Scholar
  14. 14.
    J. Aveston, G. A. Cooper and A. Kelly, in “Properties of Fibre Composites”, Conference Proceedings of the National Physical Laboratory (IPC Science and Technology Press Ltd, Surrey, UK, 1971) pp. 15–26.Google Scholar
  15. 15.
    R. N. Singh and M. Sutcu, J. Mater. Sci. in press.Google Scholar

Copyright information

© Chapman and Hall Ltd 1991

Authors and Affiliations

  • R. N. Singh
    • 1
  1. 1.GE Corporate Research and DevelopmentSchenectadyUSA

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