Skip to main content Accessibility help
×
Home

Mechanisms of Silica and Titania Colloidal Particle Formation from Metal Alkoxides

  • Joseph K. Bailey (a1) and Martha L. Mecartney (a1)

Abstract

Control of the preparation of monodisperse particles for green body formation can be achieved by understanding the growth mechanism. Growth processes for colloidal silica and titania were followed by cryo-TEM, which allows direct observation of the particles in the liquid state. Structural development was tracked by quenching samples at successive reaction times. The preparation of silica particles involved the formation of ramified species which subsequently collapsed after reaching a certain size. In the titania system, initially small dense nuclei are observed which eventually form uniformly textured homogeneous particles.

Copyright

References

Hide All
1. Stoumlber, W., Fink, A., and Bohn, E., J. Coll. Inf. Sci. 26 62 (1968).
2. Bogush, G.H., Tracy, M.A., and Zukoski, C.F. IV, J. Non-Crystal. Sol. 104 95 (1988).
3. Bogush, G.H. and Zukoski, C.F. IV, in Ultrastructure Processing of Advanced Ceramics, eds. Mackenzie, J.D. and Ulrich, D.R., (John Wiley & Sons, New York, 1989) p. 477.
4. Barringer, B. and Bowen, H.K., J. Amer. Ceram. Soc. 65 C-199 (1982).
5. Diaz-Guemes, M.I., Gonzalez Carreno, T., Serna, C.J., and Palacios, J.M., J. Mater. Sci. Lett. 7, 671 (1988).
6. Bailey, J.K., Bellare, J., and Mecartney, M.L., in Specimen Preparation for Transmission Electron Microscopy of Materials, eds. Bravman, J.C., Anderson, R.M., and McDonald, M.L. (Mat. Res. Soc. Proc. 115, Pittsburgh, 1988) p. 69.
7. Bailey, J.K. and Mecartney, M.L., J. Non-crystal. Sol. 109 198 (1989).
8. Heimenz, P.C., Polymer Chemistry (Marcel Dekker, New York 1984) p. 529.
9. Israelachvili, J.N., Intermolecular and Surface Forces (Academic Press, London, 1985) p. 187.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed