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2 results on '"Burch, S F"'

1. Assessing Powder Compacts.

Author

Derby, Brian, Brewin, P. R., Coube, O., Doremus, P., Burch, S. F., Calero, J. A., Eriksson, M., Hoffman, B., Leuprecht, A., Maassen, R., Snijkers, F. M. M., Vandermeulen, W., and Tweed, J. H.

Abstract

Powder-compaction models predict density distributions in green powder compacts and also, potentially, the location of cracks. In order to test model predictions, it is important to be able to assess the density distribution in powder compacts and also the location of cracks. [ABSTRACT FROM AUTHOR]

Published
2007
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2. Die Fill and Powder Transfer.

Author

Derby, Brian, Brewin, P. R., Coube, O., Doremus, P., Burch, S. F., Cocks, A. C. F., Prado, J. M., and Tweed, J. H.

Abstract

Initial work on compaction modelling assumed that the density of the powder bed in a die at the start of compaction is uniform. This has been challenged from two directions. Firstly, measurements of the density distribution in compacted components did not always agree with predictions and nonuniform fill-density has been used as one explanatory factor [1]. Secondly, recent work on measuring the density distributions of powder beds in filled dies has suggested that variations of the order of 10 % to 15 % in local powder density can be developed [this chapter]. [ABSTRACT FROM AUTHOR]

Published
2007
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