Abstract
By using X-ray micro-computed tomography it was possible to determine the extent of agglomerate breakdown during the mixing and extrusion of ceramic pastes. The technique allowed a significant improvement over previous attempts to visually monitor agglomerate breakdown which have been hampered by the lack of a suitable technique with which to obtain fast and reliable three-dimensional data regarding the volume and size distribution of agglomerates. The extent of agglomerate breakdown in a model agglomerate/matrix system was compared after processing by z-blade mixing followed by ram extrusion and by a co-rotating twin-screw mixing/extrusion process at various operating parameters; the latter process was found to be more effective at breaking down the agglomerates under all processing conditions. (c) 2007 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 6451-6456 |
Number of pages | 6 |
Journal | Chemical Engineering Science |
Volume | 62 |
Issue number | 22 |
DOIs | |
Publication status | Published - 1 Nov 2007 |
Keywords
- tomography
- product processing
- particle processing
- twin-screw extrusion
- extrusion
- agglomerate breakdown