Hostname: page-component-76fb5796d-zzh7m Total loading time: 0 Render date: 2024-04-30T06:45:57.752Z Has data issue: false hasContentIssue false
  • English
  • Français

Hollow Mullite Ceramic Microspheres by Water Extraction of Emulsified Aqueous Droplets

Published online by Cambridge University Press:  21 February 2011

Guoxu Liu  and
David L. Wilcox Sr
Guoxu Liu
Affiliation:
SR Department of Materials Sciences and Engineering, University of Illinois, Urbana, Illinois 61801
David L. Wilcox Sr
Affiliation:
SR Department of Materials Sciences and Engineering, University of Illinois, Urbana, Illinois 61801
Get access

Abstract

This paper describes a novel colloidal route for the preparation of hollow mullite ceramic microspheres with sizes in the range of 10 μm. An emulsion technique was combined with a water extraction sol-gel process, to form an aqueous droplet dispersion and gel the resulting droplets by extracting water with a dehydrating liquid. The liquid-filled gelled microcapsules were then dried and fired to form hollow ceramic microspheres. Important processing variables controlling the microspherc morphology were determined and a formation mechanism was proposed. Due to its potential applications in microelectronic packaging, mullite was selected as the model material for the present work, but the synthesis technique may be used for making other single or multiphase ceramic compositions

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 201
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Downs, L., Ebner, M. A. and Miller, W. J., in Sol-Gel Technology for Thin Films. Fibers. Performs. Electronics, and Specialty Shapes, edited by Klein, L. C. (Noyes Publications, Park Ridge, NJ, 1988), pp330–381.Google Scholar
2 Sarikaya, Y. and Akinc, M., Ceramic International* 14, 239–244 (1988).Google Scholar
3 Sowman, H. G., U. S. Patent No. 4, 349, 456 (Sep. 14, 1982).Google Scholar
4 Vernetti, D. J. and Wilcox, D. L., in Proceedings of the 1992 International Conference on Multichip Modules. (ISHM/IEPS, Denver, CO, 1992), pp. 300–307.Google Scholar
5 Vernetti, D. J. and Wilcox, D. L., in Proceedings of the 1992 International Symposium on Microelectronics. (ISHM, San Francisco, CA, 1992), pp. 117–121.Google Scholar
6 Liu, G. and Wilcox, D. L., presented at the 95th Annual Meeting of the American Ceramic Society, Indianapolis, IN, 1994.Google Scholar
7 Zhang, S. and Messing, G. L., J. Am. Ceram. Soc. 73 (1), 61–7 (1990).Google Scholar
8 Haas, P. A., Bond, W. D., Lloyd, M. H., and McBride, J. P., in Proceedings of Second International Thorium Fuel Cycle Symposium. (Gatlinburg, TN, 1966), pp. 391–415.Google Scholar
9 Wymer, , in Proceedings of a Panel on Sol-Gel Processes for Ceramic Nuclear Fuels. (Vienna, 1968), pp. 131–172.Google Scholar
10 Deptula, A., Rebandel, J., Drozda, W., Lada, W., Olczak, T., in Better Ceramics through Chemistry V. edited by Hampden-Smith, M. J., Klemperer, W. G., and Brinker, C. J. (Materials Research Society, Pittsburgh, PA, 1992), pp. 277–283.Google Scholar
11 Vernetti, D. J., master's thesis, University of Illinois, Urbana, IL, 1992.Google Scholar