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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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Burkhardt, Carlo
Jožef Stefan International Postgraduate School
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Production of Permanent Magnets from Recycled NdFeB Powder with Powder Extrusion Mouldingcitations
- 2024Sinter-Based Additive Manufacturing of Ni-Ti Shape Memory Alloy
- 2021Powder content in powder extrusion moulding of tool steelcitations
- 2017Isotropic NdFeB hard magnets
- 2017SHAPING, DEBINDING AND SINTERING OF STEEL COMPONENTS VIA FUSED FILAMENT FABRICATION
- 2017The SDS process: A viable way for the production of metal parts
- 2017Special Binder Systems for Metal Powders in Highly Filled Filaments for Fused Filament Fabrication
- 2017Fused Filament Fabrication for the production of metal and/or ceramic parts and feedstocks therefore
- 2017The production of magnets by FFF - Fused Filament Fabrication
- 2017Metal Injection Moulding for the Production of Recycled Rare Earth Magnets
- 2016Metal Injection Moulding of NdFeB Based on Recycled Powders
- 2016Metal Injection Moulding of NdFeB based on Recycled Powders
Places of action
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document
Metal Injection Moulding of NdFeB Based on Recycled Powders
Abstract
Over the last ten years several groups have been carrying out research into metal injection moulding (MIM) of neodymium-iron-boron (NdFeB) powders to produce isotropic or anisotropic rare earth magnets with higher complexity than in the conventional press and sintering approaches. However, difficult processability due to the high affinity of the powder to oxygen and carbon pickup remains problematic in terms of obtaining sufficient remanence and coercivity. In this paper, a new approach to MIM of NdFeB magnets is presented. It is based on the use of powder obtained from recycling of used rare earth magnets by the hydrogen decrepitation (HD) process. Different types of binder systems have been used for producing mouldable MIM feedstock. Influence of debinding and sintering conditions on interstitial contents and magnetic properties of sintered MIM parts are presented and discussed. Magnets with a remanence of 570 mT, a coercivity of 970 kA/m and an energy product of 57 kJ/m³ could be produced without additional heat treatment.