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Analytic method for the minimum time for binder removal from three-dimensional porous green bodies

Published online by Cambridge University Press:  31 January 2011

Stephen J. Lombardo  and
Z.C. Feng
Stephen J. Lombardo*
Affiliation:
Department of Chemical Engineering, University of Missouri, Columbia, Missouri 65211
Z.C. Feng
Affiliation:
Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri 65211
*
a)Address all correspondence to this author. e-mail: LombardoS@missouri.edu
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Abstract

An analytical expression was derived to predict the heating profile that minimizes the cycle time for the thermal removal of binder from porous green ceramic bodies. The analytical equation was based upon the solution to a three-dimensional convective transport equation that describes flow in porous media arising from the thermal decomposition of binder. The solution to the transport problem was then combined with an algorithm derived from variational calculus. The analytical expression described the time for binder removal in terms of the body dimensions, isotropic permeability, volume fraction of binder, and threshold pressure within the green body.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 11 , November 2003 , pp. 2717 - 2723
Copyright
Copyright © Materials Research Society 2003

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References

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