Effect of Moulding Pressure on Pore Structure

A material system suitable for manufacturing and modelling ceramic filters was devised. The effect of axial moulding pressure on the grain size distribution was determined. The most important boundary conditions of a mathematical model for planning the pore size distribution of the filters were esta...

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Published in:Key engineering materials 1997-04, Vol.132-136, p.440-443
Main Authors: Korim, Tamás, Széwald, O., Kotsis, Ildikó
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Miscellaneous
Technical ceramics
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Széwald, O.
Kotsis, Ildikó
description A material system suitable for manufacturing and modelling ceramic filters was devised. The effect of axial moulding pressure on the grain size distribution was determined. The most important boundary conditions of a mathematical model for planning the pore size distribution of the filters were established. The rate of grain breakage can be determined from the increase in specific surface as a function of axial moulding pressure. If 20% is the maximum growth allowed, the model provides the pressure range that can be applied on forming ceramic filters using a given grain fraction. A method and instrumentation were devised to measure the pore size distribution over the range used by Hg-penetration porosimeters. Pore diameters of 15-500 micron can be measured by this method. 3 refs.
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subjects Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Miscellaneous
Technical ceramics
title Effect of Moulding Pressure on Pore Structure
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