Paper Titles
Preparation of Porous Wollastonite Ceramics for Filtration
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Fabrication of Porous Silicon Nitride with High Porosity
p.1105
Properties and Application of Oriented Porous SiC as Transpiration Cooling Materials
p.1109
Fabrication of Porous Cellular SiC Ceramics from Wood by Embedding in Si/SiO2 Powder Mixture
p.1113
Study of Affecting Factors on Porosity in Gel-Casting Foam
p.1117
Preparation and Characterization of ZrO2 Microspheres by Internal Gelation Process
p.1121
Preparation and Microstructure of Bauxite Ceramic Microsphere
p.1124
Homogeneity of Aqueous Al2O3/3Y-TZP Feedstock by Plastic Kneading
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Effects of Adding Form of Additives on the Structure and Properties of High-Purity Alumina Ceramics
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Study of Affecting Factors on Porosity in Gel-Casting Foam

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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.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

1117-1120

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.1117

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Online since:

April 2007

Authors:

Qun Fang Xiao, Xiao Shan Ning, Ming Fu

Keywords:

Gel-Casting Foam, Mechanical Stir, Porous Material, Reynolds Number

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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