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Growth and Structure of Fractally Rough Silica Colloids

Published online by Cambridge University Press:  28 February 2011

K. D. Keefer
K. D. Keefer*
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
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Abstract

Small-angle x-ray scattering measurements on partially hydrolyzed silicon tetraethoxide solutions indicate the formation of colloidal particles which have fractal structures or fractally rough surfaces. The structures and growth kinetics are consistent with chemically limited nucleation and growth of the particles from slowly generated reactive silanol species. Two dimensional computer simulations of nucleation and random growth of clusters from partially hydrolyzed monomers generate the same range of non-fractal, fractally rough and fractal clusters observed in the experiment.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 73: Symposium H – Better Ceramics Through Chemistry II , 1986 , 295
Copyright
Copyright © Materials Research Society 1986

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References

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