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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/2609

Title: Enhanced casting rate by dynamic heating during slip casting
Authors: Zhang, Yongheng
Binner, J.G.P.
Keywords: Clays
Microwave processing
Slip casting
Issue Date: 2002
Publisher: © Elsevier
Citation: ZHANG, Y. and BINNER, J.G.P., 2002. Enhanced casting rate by dynamic heating during slip casting. Journal of the European Ceramic Society, 22, pp. 135-142
Abstract: The slip casting process is widely used to consolidate ceramic particles from aqueous suspensions to form green compacts, particularly those with complicated shapes. Raising the slip temperature during slip casting is known to increase the casting rate, this is believed to be via a decrease in water viscosity. However, differences have been observed when using convection and microwave heating to raise the temperature. In the present work, it has been found that the use of short-pulses of microwave energy to heat the casting system dynamically causes a greater degree of acceleration than when using conventional radiant heating. The increased uptake of water from the slip by the porous mould is believed to be indicative of a vaporisation–condensation cycle mechanism. A negative pressure would be created during the condensation stage of the cycle, acting as an additional suction force to the capillary action and hence accelerating the casting process.
Description: This is Restricted Access. This article was published in the journal, Journal of the European Ceramic Society [© Elsevier] and is available at: http://www.sciencedirect.com/science/journal/09552219.
URI: https://dspace.lboro.ac.uk/2134/2609
ISSN: 0955-2219
Appears in Collections:Closed Access (Materials)

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