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Thermal diffusivity of chemically vapour deposited silicon carbide reinforced with silicon carbide or carbon fibres

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Abstract

The thermal diffusivity of chemically vapour deposited silicon carbide reinforced with either Nicalon SiC yarn or PAN-precursor carbon fibres was measured by the laser-flash method during various time-temperature treatments. The diffusivity was found to depend on the degree of densification, the direction of heat flow with respect to the fibre orientation, and the thermal history. Structural modifications, confirmed by X-ray diffraction, produced large permanent changes in the thermal properties of the SiC-SiC composites when heated above 1200° C, while only minor changes were seen in C-SiC composites heated above 1500° C.

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References

  1. D. P. H. Hasselman, J. Amer. Ceram. Soc. 52 (1969) 600.

    Article  CAS  Google Scholar 

  2. Karl M. Prewo and John J. Brennan, J. Mater. Sci. 15 (1980) 463.

    Article  CAS  Google Scholar 

  3. John J. Brennan and Karl M. Prewo, ibid. 17 (1982) 2371.

    Article  CAS  Google Scholar 

  4. W. J. Parker, R. J. Jenkins, C. P. Butler and G. L. Abbott, J. Appl. Phys. 32 (1961) 1679.

    Article  CAS  Google Scholar 

  5. A. E. Powers, “Conductivity in Aggregates”, Knolls Atomic Power Laboratory Report KAPL-2145 (1961).

  6. T. Mah, N. L. Hecht, D. E. McCullum, J. R. Hoenigman, H. M. Kim, A. P. Katz and H. A. Lipsitt, J. Mater. Sci. 19 (1984) 1191.

    Article  CAS  Google Scholar 

  7. J. J. Brennan, L. D. Bentsen and D. P. H. Hasselman, ibid. 17 (1982) 2337.

    Article  CAS  Google Scholar 

  8. Y. S. Touloukian and E. H. Buyco, “Specific Heat — Nonmetallic Solids”, “Thermophysical Properties of Matter”, Vol. 5 (IFI/Plenum Press, New York-Washington, 1970).

    Google Scholar 

  9. C. H. McMurtry, M. R. Kasprzyk and R. G. Naum, Microstructural Effects in Silicon Carbide, in “Silicon Carbide — 1973”, edited by R. C. Marshall, J. W. Faust Jr and C. E. Ryan (University of South Carolina Press, Columbia, South Carolina, 1974) pp. 411–19.

    Google Scholar 

  10. M. W. Pilling, B. Yates, M. A. Black and P. Tattersall, J. Mater. Sci. 14 (1979) 1326.

    Article  CAS  Google Scholar 

  11. W. D. Kingery, H. K. Bowen and D. R. Uhlman, “Introduction to Ceramics”, 2nd edn. (John Wiley, New York, 1976) pp. 638–9.

    Google Scholar 

  12. H. J. Siebeneck, J. J. Cleveland, D. P. H. Hasselman and R. C. Bradt, “Thermal Diffusivity of Microcracked Ceramic Materials,” Symposium on Ceramic Microstructures, Berkeley, California (Westview Press, Boulder, Colorado, 1977) pp. 753–62.

    Google Scholar 

  13. D. P. H. Hasselman, J. Comp. Mater. 12 (1978) 403.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Materials Engineering, Virginia Polytechnic Institute and State University, 24061, Blacksburg, Virginia, USA

    H. Tawil, Larry D. Bentsen, S. Baskaran & D. P. H. Hasselman

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  1. H. Tawil
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  2. Larry D. Bentsen
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  3. S. Baskaran
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  4. D. P. H. Hasselman
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On sabbatical leave of absence from the Société Européenne de Propulsion, Bordeaux, France.

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Tawil, H., Bentsen, L.D., Baskaran, S. et al. Thermal diffusivity of chemically vapour deposited silicon carbide reinforced with silicon carbide or carbon fibres. J Mater Sci 20, 3201–3212 (1985). https://doi.org/10.1007/BF00545186

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