Rheology for Better Sol-Gel Fiber and Film Formation


Flow behavior of a liquid or suspension depends on how stress varies with strain rate, strainrate rotation, and strain history, as well as the progress of evaporation, extent of reaction, and degree of aggregation in sol-gel systems. Rheological methods suitable for measuring flow behavior are summarized. Examples of measurements and microstructural observations by transmission electron microscopy made during gelation of four sol-gel systems are presented. The relation of rheological response to microstructure is discussed.

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  1. 1.

    R. B. Bird, R. C. Armstrong, and O. Hassager, Dynamics of Polymeric Liquids, 2nd ed., Wiley, New York, 1987.

    Google Scholar 

  2. 2.

    C. W. Macosko, Rheological Measurements, VCH Publishers, New York, to appear.

  3. 3.

    W. B. Russel, D. A. Saville, and W. R. Schowalter, Colloidal Dispersions, Cambridge University Press, New York, 1989.

    Book  Google Scholar 

  4. 4.

    W. D. Ferry, Viscoelastic Properties of Polymers, 3rd ed., Wiley, New York, 1980.

    Google Scholar 

  5. 5.

    P. R. Schunk and L. E. Scriven, J. Rheol. 34, in press (1990).

  6. 6.

    C. J. Brinker and G. W. Scherer, Sol-Gel Science, Academic Press, San Diego, 1990.

    Google Scholar 

  7. 7.

    R. B. Secor, P. R. Schunk, T. B. Hunter, T. F. Stitt, C. W. Macosko, and L. E. Scriven, J. Rheol. 33, 1329 (1989).

    CAS  Article  Google Scholar 

  8. 8.

    G. G. Fuller, C. A. Cathey, B. Hubbard, and B. B. Zebrowski, J. Rheol. 31, 235 (1987).

    CAS  Article  Google Scholar 

  9. 9.

    K. J. Mikkelsen, C. W. Macosko, and G. G. Fuller, Proc. Xth Int. Congr. Rheol. Sydney 2, 125 (1988).

    Google Scholar 

  10. 10.

    P. R. Schunk, J. M. de Santos, and L. E. Scriven, J. Rheol. 34, 387 (1990).

    Article  Google Scholar 

  11. 11.

    H. Barnes, J. F. Hutton, and K. Walters, Rheological Behavior, Elsevier, London, 1989.

    Google Scholar 

  12. 12.

    J. K. Bailey, J. R. Bellare, and M. L. Mecartney, in Specimen Preparation for Transmission Electron Microscopy of Materials, eds. J. C. Bravman, R. M. Anderson, and M. L. McDonald (Mater. Res. Soc. Proc. Hi, Pittsburgh, 1988) 69.

    Google Scholar 

  13. 13.

    J. Bellare, J. K. Bailey, and M. L. Mecartney, in Ultrastructure Processing of Advanced Ceramics, eds. J. D. Mackenzie and D. R. Ulrich, Wiley, New York (1988) 835.

    Google Scholar 

  14. 14.

    J. K. Bailey, T. Nagase, S. M. Broberg, and M. L. Mecartney, J. Noncryst. Solids 109, 198 (1988).

    Article  Google Scholar 

  15. 15.

    S. Sakka and K. Kamiya, J. Noncryst. Solids 48, 31 (1982).

    CAS  Article  Google Scholar 

  16. 16.

    S. Sakka and H. Kozuka, J. Noncryst. Solids 100, 142 (1988).

    CAS  Article  Google Scholar 

  17. 17.

    J. K. Bailey, T. Nagase, G. A. Pozarnsky and M. L. Mecartney, these proceedings.

  18. 18.

    F. Juliusburger and A. Pirquet, Trans. Farad. Soc. 32, 445 (1936).

    CAS  Article  Google Scholar 

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Macosko, C.W., Mecartney, M.L. & Scriven, L.E. Rheology for Better Sol-Gel Fiber and Film Formation. MRS Online Proceedings Library 180, 555 (1990). https://doi.org/10.1557/PROC-180-555

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