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Granule Structure Evolution during Powder Compaction

Published online by Cambridge University Press:  11 February 2011

William J. Walker Jr
William J. Walker Jr*
Affiliation:
New York State Center for Advanced Ceramic Technology at Alfred University, Alfred, NY 14802, U.S.A.
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Abstract

Die compaction of granulated powder is a common forming process used in the ceramics industry. Glass spheres were used as a model system to investigate granule failure during die compaction. Since glass spheres are brittle, failure results in fragmentation. Particle size analysis of the resulting fragments demonstrates the statistical nature of granule failure during compaction, with some granules failing at very low applied pressures while a large fraction persist at even the highest applied loads. The results are discussed in terms of the Andreasen, Furnas and Dinger-Funk particle packing models for continuous size distributions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 759: Symposium MM – Granular Material-Based Technologies , 2002 , MM2.5
Copyright
Copyright © Materials Research Society 2003

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References

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