Abstract
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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References
R. B. Bird, R. C. Armstrong, and O. Hassager, Dynamics of Polymeric Liquids, 2nd ed., Wiley, New York, 1987.
C. W. Macosko, Rheological Measurements, VCH Publishers, New York, to appear.
W. B. Russel, D. A. Saville, and W. R. Schowalter, Colloidal Dispersions, Cambridge University Press, New York, 1989.
W. D. Ferry, Viscoelastic Properties of Polymers, 3rd ed., Wiley, New York, 1980.
P. R. Schunk and L. E. Scriven, J. Rheol. 34, in press (1990).
C. J. Brinker and G. W. Scherer, Sol-Gel Science, Academic Press, San Diego, 1990.
R. B. Secor, P. R. Schunk, T. B. Hunter, T. F. Stitt, C. W. Macosko, and L. E. Scriven, J. Rheol. 33, 1329 (1989).
G. G. Fuller, C. A. Cathey, B. Hubbard, and B. B. Zebrowski, J. Rheol. 31, 235 (1987).
K. J. Mikkelsen, C. W. Macosko, and G. G. Fuller, Proc. Xth Int. Congr. Rheol. Sydney 2, 125 (1988).
P. R. Schunk, J. M. de Santos, and L. E. Scriven, J. Rheol. 34, 387 (1990).
H. Barnes, J. F. Hutton, and K. Walters, Rheological Behavior, Elsevier, London, 1989.
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.
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.
J. K. Bailey, T. Nagase, S. M. Broberg, and M. L. Mecartney, J. Noncryst. Solids 109, 198 (1988).
S. Sakka and K. Kamiya, J. Noncryst. Solids 48, 31 (1982).
S. Sakka and H. Kozuka, J. Noncryst. Solids 100, 142 (1988).
J. K. Bailey, T. Nagase, G. A. Pozarnsky and M. L. Mecartney, these proceedings.
F. Juliusburger and A. Pirquet, Trans. Farad. Soc. 32, 445 (1936).
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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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DOI: https://doi.org/10.1557/PROC-180-555