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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sercombe, Tim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2023On the importance of nano-oxide control in laser powder bed fusion manufactured Ni-based alloys to enhance fracture propertiescitations
- 2023Dynamic constitutive behavior of LPBFed metal alloyscitations
- 2022Bioactivity and biodegradability of high temperature sintered 58S ceramicscitations
- 2022High strain-rate response of additively manufactured light metal alloyscitations
- 2020The effect of drying method on the surface structure of mesoporous sol-gel derived bioactive glass-ceramiccitations
- 2018Mechanical behaviour of alginate-gelatin hydrogels for 3D bioprintingcitations
- 2017On the Breakdown of SiC during the Selective Laser Melting of Aluminum Matrix Compositescitations
- 2016A 3D printed superconducting aluminium microwave cavitycitations
- 2016Selective laser melting of Zr-based bulk metallic glassescitations
- 2016Selective laser melting of Al-12Si alloy: Enhanced densification via powder dryingcitations
- 2011Manufacture by selective laser melting and mechanical behavior of a biomedical Ti-24Nb-4Zr-8Sn alloycitations
- 2008Heat treatment of Ti-6Al-7Nb components produced by selective laser meltingcitations
- 2008Process repeatability and sources of error in indirect SLS of aluminiumcitations
- 2007The Effect of Particle Shape on the Sintering of Aluminumcitations
- 2006Process shrinkage and accuracy during indirect laser sintering of aluminiumcitations
- 2005Sintering of maraging steel with phosphorous additionscitations
- 2004On the role of magnesium and nitrogen in the infiltration of aluminium by aluminium for rapid prototyping applicationscitations
- 2004On the role of tin in the infiltration of aluminium by aluminium for rapid prototyping applicationscitations
- 2003Sintering of freeformed maraging steel with boron additionscitations
- 2003The effect of resin type on the sintering of freeformed maraging steelcitations
- 2003On the sintering of uncompacted, pre-alloyed Al powder alloyscitations
- 2003Rapid manufacturing of aluminum componentscitations
- 2001Liquid phase sintering of aluminium alloyscitations
Places of action
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article
On the role of magnesium and nitrogen in the infiltration of aluminium by aluminium for rapid prototyping applications
Abstract
Selective laser sintering has been used to fabricate an aluminium alloy powder preform which is subsequently debound and infiltrated with a second aluminium alloy. This represents a new rapid manufacturing system for aluminium that can be used to fabricate large, intricate parts. The base powder is an alloy such as AA6061. The infiltrant is a binary or higher-order eutectic based on either Al-Cu or At-Si. To ensure that infiltration occurs without loss of dimensional precision, it is important that a rigid skeleton forms prior to infiltration. This can be achieved by the partial transformation of the aluminium to aluminium nitride. In order for this to occur throughout the component, magnesium powder must be added to the alumina support powder which surrounds the part in the furnace. The magnesium scavenges the oxygen and thereby creates a microclimate in which aluminium nitride can form. The replacement of the ionocovalent Al2O3 with the covalent AlN on the surface of the aluminium powders also facilitates wetting and thus spontaneous and complete infiltration. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.