| EPSRC Reference: |
GR/S74164/01 |
| Title: |
Three Dimensional functionally graded metals or cermets |
| Principal Investigator: |
Evans, Professor JRG |
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| Department: |
Materials |
| Organisation: |
Queen Mary University of London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 February 2004 |
Ends: |
31 January 2005 |
Value (£): |
51,923
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| EPSRC Research Topic Classifications: |
| Materials Processing |
Materials testing & eng. |
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Summary on Grant Application Form |
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As part of a recent EPSRC grant (GR/N22571), we have devised a simple and elegant method of patterning the compostion of metallic powders on a selective laser sintering platform by acoustic modulation of a multifunctional valve. This is being imported into a selective laser sintering work station as part of a current EPSRC funded project. But selective laser sintering has disadvantages for 3D functional gradients in terms of unfavourable metallurgical structures arising from the wide temperature history and of residual stresses. Dr Yang (co-author) has devised a rather simpler method of solid freeforming in which the shape is controlled by the same means as the composition. Thus one valve channel will place ceramic (probably alumina because of its low wettability) in the non-forming areas of each layer to confine the shape while the other channels deposit a 3D powder assembly. Conventional sintering will then be used for shapes without re-entrant geometry and a two stage sintering for those with. This brings metallurgical multifunctionality into the reach of conventional powder metallurgy enterprises. It offers practical simplicity and low capitalisation. We ask for modest funds to demonstrate that this is possible
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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 |
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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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