Skip to main content
SpringerLink
Log in

The interaction of chemical kinetics and diffusion in the dynamics of chemical vapor infiltration

  • Articles
  • Published:
Journal of Materials Research Aims and scope Submit manuscript

Abstract

The classical model of Chemical Vapor Infiltration (CVI) treats diffusion and surface reaction in a representative cylindrical pore. Two significant modifications to that approach are presented herein. One accounts for more complex chemistry by allowing for both gas-phase and surface reactions which lead to film growth. The other couples the pore model to a reactor model for the region external to the porous preform. The results demonstrate that it is possible to select chemical schemes that yield densification from the interior to the exterior of the preform, thus avoiding premature trapping of interior voids.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D. P. Stinton, T. M. Besmann, and R. A. Lowden, Am. Ceram. Soc. Bull. 67, 350 (1988).

    CAS  Google Scholar 

  2. K. K. Mohanty, J. M. Ottino, and H. T. Davis, Chem. Eng. Sci. 37, 905 (1982).

    Article  CAS  Google Scholar 

  3. M. Sahimi, Chem. Eng. Sci. 43, 2981 (1988).

    Article  CAS  Google Scholar 

  4. N-H. Tai and T-W. Chou, J. Am. Ceram. Soc. 72, 414 (1989).

    Article  CAS  Google Scholar 

  5. S. M. Gupte and J. A. Tsamopoulos, J. Electrochem. Soc. 136, 555 (1989).

    Article  CAS  Google Scholar 

  6. B. S. Meyerson and J. M. Jasinski, J. Appl. Phys. 61, 785 (1987).

    Article  CAS  Google Scholar 

  7. A. Yeckel, S. Middleman, and A. Hochberg, J. Electrochem. Soc. 136, 2038 (1989).

    Article  CAS  Google Scholar 

  8. H. Rebenne and R. Pollard, J. Am. Ceram. Soc. 70, 907 (1987).

    Article  CAS  Google Scholar 

  9. R. Colmet, R. Naslain, P. Hagenmuller, and C. Bernard, J. Electrochem. Soc. 129, 1367 (1982).

    Article  CAS  Google Scholar 

  10. P. Wong and M. Robinson, J. Am. Ceram. Soc. 53, 617 (1970).

    Article  CAS  Google Scholar 

  11. R. L. Bickerdike, A. Brown, G. Hughes, and R. Ranson, in Proc. Fifth Conf. on Carbon (Pergamon Press, New York, 1962), Vol. I.

    Google Scholar 

  12. E. L. Cussler, Diffusion: Mass Transfer in Fluid Systems (Cambridge Univ. Press, New York, 1984).

    Google Scholar 

  13. T.L. Starr, Ceram. Eng. Sci. Proc. 8, 951 (1987).

    Article  Google Scholar 

  14. D. P. Stinton, A. J. Caputo, and R. A. Lowden, Am. Ceram. Soc. Bull. 65, 347 (1986).

    CAS  Google Scholar 

  15. H. Hannache, F. Langlais, and R. Naslain, in Proc. Fifth European Conf. on CVD (Electrochemical Society, Pennington, NJ, 1985), p. 219.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of AMES/Chemical Engineering, University of California-San Diego, La Jolla, California, 92093, USA

    Stanley Middleman

Authors
  1. Stanley Middleman
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Middleman, S. The interaction of chemical kinetics and diffusion in the dynamics of chemical vapor infiltration. Journal of Materials Research 4, 1515–1524 (1989). https://doi.org/10.1557/JMR.1989.1515

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/JMR.1989.1515

Search

Navigation