Paper Title:
Study of Affecting Factors on Porosity in Gel-Casting Foam
  Abstract

Foaming and gelation of slurry is a recently invented processing route for fabricating porous ceramic. According to the method, a mechanical stir process was introduced to the ceramic slurry added with surfactant, then initiator was added to induce fast gelation between organic monomers and ceramic powder, the green body was obtained after a subsequently drying process. At last, porous ceramic was fabricated after sintering the green body at high temperature. Effects of surfactant volume content and several stirring factors on porosity are studied in this paper. It results that there is a proportional relationship between porosity and Reynolds number which only changes when stir time varies, different slurry or surfactant volume content results in similar relationship between porosity and Reynolds number.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1117-1120
DOI
10.4028/www.scientific.net/KEM.336-338.1117
Citation
Q. F. Xiao, X. S. Ning, M. Fu, "Study of Affecting Factors on Porosity in Gel-Casting Foam", Key Engineering Materials, Vols. 336-338, pp. 1117-1120, 2007
Online since
April 2007
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Price
$32.00
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