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The Influence of Static Loads on the Oxidation Behaviour of Fibre Reinforced SiC/SiC Composites

  • Robert Lundberg
  • Torgny Stenholm
  • Lars Pejryd
  • Lars Kahlman
Chapter

Abstract

A ceramic matrix composite (SiC/SiC) material was subjected to static stresses above and below the matrix cracking stress in an oxidising environment at 1000 and 1250°C. At the lower stress level, times to failure longer than 150 h were obtained, whereas the lifetime was significantly reduced at the higher stress level. A combined oxidation/matrix cracking mechanism was proposed, based on oxidation weight gain, microstructural investigation and the stress/rupture results.

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References

  1. 1.
    Lamicq, P.J., Bernhart, G.A., Dauchier, M., Mace, J.O., SiC/SiC Composite Ceramics, Am. Ceram. Soc. Bull., 1986, 65 (2) 336–38Google Scholar
  2. 2.
    Lamicq, P.J., Ceramic Matrix Composites — A New Concept for New Challenges, Proc. Int. Conf. High Temperature Materials for Power Engineering, Kluwer Academic Publ., 1990, 1559–74Google Scholar
  3. 3.
    Bouquet, M., Birbis, J.M., Quenisset, J.M., Toughness Assessment of Ceramic Matrix Composites, Composites Science and Technology, 1990, 37, 223–48CrossRefGoogle Scholar
  4. 4.
    Abbe, F., Carin, R., Chermant, J-L., Tensile and Compressive Creep Characteristics from Bending Tests: Application to SiC-SiC Composites, J. Eur. Ceram. Soc., 1989, 5, 201–5CrossRefGoogle Scholar
  5. 5.
    Frety, N., Boussuge M., Relationship Between High Temperature Development of Fibre—Matrix Interfaces and the Mechanical Behaviour of SiC-SiC Composites, Composites Sci. Techn., 1990, 37, 177–89CrossRefGoogle Scholar
  6. 6.
    Tieghe, N.J., Wiederhorn, S.M., Effect of Oxidation on the Reliability of Silicon Nitride, Fracture Mechanics of Ceramic, vol. 5, ed Bradt et al, Plenum Press, 1983, pp. 403–24Google Scholar
  7. 7.
    Khandelwal, P.K., Chany, J., Heitman, P.W., Slow Crack Growth in Sintered Silicon Nitride, Fracture Mechanics of Ceramics, vol. 8, ed Bradt et al, Plenum Press, 1986, pp. 351–62Google Scholar
  8. 8.
    Chen, J., Sjoberg, J., O’Meara, C., Pejryd, L., Corrosion Behaviour of HIPed Si3N4 and SiC/SiC Composite In Simulated Combustion Environments, Proc. this conferenceGoogle Scholar

Copyright information

© Elsevier Science Publishers Ltd and MPA Stuttgart 1992

Authors and Affiliations

  • Robert Lundberg
    • 1
  • Torgny Stenholm
    • 1
  • Lars Pejryd
    • 1
  • Lars Kahlman
    • 2
  1. 1.Volvo Flygmotor ABTrollhättanSweden
  2. 2.Swedish Ceramic InstituteGöteborgSweden

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