Loughborough University
Browse

File(s) under permanent embargo

Reason: This item is currently closed access.

Enhanced casting rate by dynamic heating during slip casting

journal contribution
posted on 2007-01-23, 10:12 authored by Yongheng Zhang, J.G.P. Binner
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.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Pages

532108 bytes

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

Publisher

© Elsevier

Publication date

2002

Notes

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.

ISSN

0955-2219

Language

  • en

Usage metrics

    Loughborough Publications

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC