Journal of Materials Science

, Volume 29, Issue 9, pp 2417–2424 | Cite as

Glass-ceramic matrix composites with high oxidation embrittlement resistance

  • K. P. Gadkaree


A new concept is introduced to minimize the oxidation embrittlement problem exhibited by Nicalon fibre-reinforced glass-ceramic matrix composites. A small amount of glass is added to the matrix and deforms at temperatures of interest to prevent microcrack formation. The graphitic interphase is thus shielded from an oxidative environment. The composites fabricated with the glass-doped matrices show excellent room- and elevated-temperature strengths and withstand high stresses at elevated temperatures in air for greater than 100 h without any deterioration in properties. The modulus of the glass-ceramic phase, the stiffness percentage of dopant glass and the process temperature were found to affect composite properties significantly.


Oxidation Polymer Elevated Temperature High Stress Material Processing 
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  1. 1.
    K. M. Prewo and J. J. Brennan, J. Mater. Sci. 15 (1980) 463.CrossRefGoogle Scholar
  2. 2.
    J. J. Brennan and K. M. Prewo, ibid. 17 (1982) 2871.Google Scholar
  3. 3.
    K. Chyung, M. P. Taylor and R. L. Stewart, presented at 8th Annual Meeting of the American Ceramic Society, Cincinnati, May 1985.Google Scholar
  4. 4.
    R. L. Stewart, K. Chyung, M. P. Taylor and R. F. Cooper, in “Fracture Mechanics of Ceramics”, Vol. 7, edited by R. C. Bradt, D. P. H. Hasselman, A. G. Evans and F. F. Lange (Plenum, 1986).Google Scholar
  5. 5.
    K. P. Gadkaree, K. C. Chyung and M. P. Taylor, J. Mater. Sci. 23 (1988) 3711.CrossRefGoogle Scholar
  6. 6.
    R. W. Rice, US Patent 4642271.Google Scholar
  7. 7.
    K. Chyung and S. B. Dawes, J. Mater. Sci. Eng. A162 (1993) 27.CrossRefGoogle Scholar
  8. 8.
    K. P. Gadkaree, J. Mater. Sci. 26 (1991) 4845.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • K. P. Gadkaree
    • 1
  1. 1.Corning Inc.CorningUSA

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