Effect of temperature on interfacial shear strengths of SiC-glass interfaces

Abstract

The in situ temperature dependencies of both the debonding, τd, and frictional, τf, shear stresses of a C-coated 140 μm SiC monofilament (Textron SCS-6 SiC fibre) were measured using the single fibre pullout-test. Two matrices, a borosilicate (7740 Corning Glass) and a soda-lime (Thomas Scientific) with different thermal expansion coefficients, were tested. At lower temperatures both τd and τf were found to decrease linearly with increasing temperature as a result of the relaxation of the residual stresses developed during processing, which were compressive in both cases. The stress free debonding shear stress for the borosilicate matrix was found to be 3.5 ± 1 M Pa and the friction coefficient between that matrix and the fibres was calculated to be 0.18. Fibre oxidation are believed to be responsible for enhanced bonding between the fibres and the borosilicate matrix at higher temperatures which results in an increase in both τd and τf. The large thermal expansion mismatch between the soda-lime matrix and the SiC fibres resulted in radial cracking of the former during processing. A technique is described where the whole temperature dependence of the interfacial shear stresses can be measured by a single specimen.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    D. B. Marshall and A. G. Evans, J. Amer. Ceram. Soc. 68(5) (1985) 225.

    CAS  Article  Google Scholar 

  2. 2.

    C. W. Griffin, S. Y. Limaye, D. W. Richerson and D. K. Shetty, Ceram. Eng. Sci. Proc. 9(7, 8) (1988) 671.

    CAS  Article  Google Scholar 

  3. 3.

    D. B. Marshall, J. Amer. Ceram. Soc. 66 (1984) C259.

    Google Scholar 

  4. 4.

    J. F. Madell, D. H. Grande, T. H. Tsiang and F. J. McGarry, in “Composites Materials: Testing and Design”, ASTM STP 893, edited by J. M. Whitney (ASTM, Philadelphia, 1986) pp. 87–108.

    Google Scholar 

  5. 5.

    D. C. Cranmer, U. V. Deshmukh and T. W. Coyle, “Symposium on Thermal-mechanical Behavior of Metal Matrix and Ceramic Matrix Composites”, ASTM TP 1080 Atlanta, GA, 7 November, 1988 (ASTM, Philadelphia, PA, 1988) pp. 124–135.

    Google Scholar 

  6. 6.

    R. J. Kerans, R. S. Hay, N. J. Pagano and T. A. Parthasarthy, Ceram. Bull. 68(2) (1989) 429.

    CAS  Google Scholar 

  7. 7.

    F. J. McGarry and D. W. Marshall, “Research on Wire-Wound Composite Materials”, in “Symposium on Standards for Filament-Wound Reinforced Plastics”, ASTM STP 327, ASTM, Philadelphia, PA, 1963, pp. 133–145.

    Google Scholar 

  8. 8.

    T. W. Coyle, H. M. Chan and U. V. Deshmukh, “Interfaces in Polymer, Ceramics, and Metal Matrix Composites”, edited by Hatsuo Ishida (Elsevier, 1988) pp. 489–501.

  9. 9.

    U. V. Deshmukh and T. W. Coyle, Ceram. Eng. Sci. Proc. 9(7–8) (1988) 627.

    CAS  Article  Google Scholar 

  10. 10.

    R. W. Goettler and K. T. Faber, ibid. 9(7–8) (1988) 861.

    CAS  Article  Google Scholar 

  11. 11.

    Idem, Composites Sci. Technol. 37 (1989) 129–147.

    CAS  Article  Google Scholar 

  12. 12.

    P. Lawrence, J. Mater. Sci. 7 (1972) 1.

    CAS  Article  Google Scholar 

  13. 13.

    R. J. Gray, ibid. 19 (1984) 861.

    Article  Google Scholar 

  14. 14.

    J. Amirbayat and J. W. S. Hearle, J. Fiber Sci. Tech. 2 (1970) 223.

    Article  Google Scholar 

  15. 15.

    H. J. Oel and V. D. Frechette, J. Amer. Ceram. Soc. 69 (4) (1986) 342.

    Article  Google Scholar 

  16. 16.

    M. D. Thouless, O. Sbaizero, L. S. Sigl and A. G. Evans, ibid. 72(4) (1989) 525.

    CAS  Article  Google Scholar 

  17. 17.

    Janaf Thermochemical Table, 3rd edn., U.S. National Bureau of Standards, 1986.

Download references

Author information

Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Chou, H.M., Barsoum, M.W. & Koczak, M.J. Effect of temperature on interfacial shear strengths of SiC-glass interfaces. J Mater Sci 26, 1216–1222 (1991). https://doi.org/10.1007/BF00544458

Download citation

Keywords

  • Shear Stress
  • Residual Stress
  • Shear Strength
  • Interfacial Shear
  • Interfacial Shear Stress