| EPSRC Reference: |
GR/L50112/01 |
| Title: |
DYNAMICS OF PASTE FLOW |
| Principal Investigator: |
Wilson, Dr I |
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| Department: |
Chemical Engineering and Biotechnology |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 1997 |
Ends: |
30 June 2000 |
Value (£): |
162,544
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| EPSRC Research Topic Classifications: |
| Complex fluids & soft solids |
Materials Processing |
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Summary on Grant Application Form |
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This programme investigates the dynamics of solid-liquid pastes during processing. Pastes are important products or intermediates in the chemical, commodity, ceramics and food industries. While some steady flow processes are now understood, the understanding of the dynamics is poor because physical mechanisms have not been identified and understood. This programme builds on the investigators experience in the effective characterisation of the steady flow and rheology of pastes.The phenomena recently identified are a) liquid phase migration, b) stress relaxation and build-up, and c) extrusion pressure fluctuations. All have important effects on paste properties and processing, and involve three different time scales, varying from 10ms - 100s. The work will focus on establishing the mechanisms using ceramic pastes, and on testing the applicability of the models on other paste systems, particularly softer pastes.The phase migration work will establish a testing method and to identify the key factors in paste formulation leading to liquid migration and droplet formation during flow through a die plate. The work on stress relaxation will establish how it is influenced by die geometry and paste formulation. The work on pressure fluctuations will relate process data to the mechanisms affecting paste quality and aid process control.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |