Experimental Analysis of Fine-Particle Migration during Ceramic Filtration Processes

Slip casting and filter pressing are ceramic forming processes which can be affected by the migration of fine particles during filtration. Fine particles can be carried along with the filtrate and deposited within the ceramic compact and /or filter medium, thereby clogging and reducing the permeabil...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1992-10, Vol.75 (10), p.2726-2732
Main Authors: Hampton, J. Holly D., Savage, Stuart B., Drew, Robin A. L.
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
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Description
Summary:Slip casting and filter pressing are ceramic forming processes which can be affected by the migration of fine particles during filtration. Fine particles can be carried along with the filtrate and deposited within the ceramic compact and /or filter medium, thereby clogging and reducing the permeabilities of the porous media. This in turn affects the growth rate as well as the porosity of the compact. Evidence of clogging of the ceramic compact and filter medium was obtained by (1) SEM analysis of the compact and filter media, (2) surface area measurements of cross sections of compacts, and (3) measurements of the thickness of compacts as a function of casting time.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1992.tb05496.x