| People | Locations | Statistics |
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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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Walton, Allan
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Development of anisotropic Nd-Fe-B powder from isotropic gas atomized powdercitations
- 2022Limitations in the grain boundary processing of the recycled HDDR Nd-Fe-B systemcitations
- 2020Limitations in grain boundary processing of the recycled HDDR Nd-Fe-B systemcitations
- 2020Recycling of bonded NdFeB permanent magnets using ionic liquidscitations
- 2020The extraction of NdFeB magnets from automotive scrap rotors using hydrogencitations
- 2019Coercivity increase of the recycled HDDR Nd-Fe-B powders doped with DyF3 and processed via Spark Plasma Sintering & the effect of thermal treatmentscitations
- 2017Isotropic NdFeB hard magnets
- 2017Metal Injection Moulding for the Production of Recycled Rare Earth Magnets
- 2016REE Recovery from End-of-Life NdFeB Permanent Magnet Scrap: A Critical Reviewcitations
- 2016The Hydrogen Ductilisation Process (HyDP) for shaping NdFeB magnetscitations
- 2016Metal Injection Moulding of NdFeB Based on Recycled Powders
- 2016Metal Injection Moulding of NdFeB based on Recycled Powders
- 2016The development of microstructure during hydrogenation–disproportionation–desorption–recombination treatment of sintered neodymium-iron-boron-type magnetscitations
- 2016Novel "Flash Spark Plasma Sintering" method for the rapid fabrication of nanostructured and anisotropic rare-earth lean permanent magnetic materials
- 2014The Effect of Ni Impurities on HDDR Processing of Scrap Sintered NdFeB Magnets
- 2003Hydrogenation properties of nanocrystalline Mg- and Mg₂Ni-based compounds modified with platinum group metals (PGMs)
- 2002Low temperature hydrogenation properties of platinum group metal treated, nickel metal hydride electrode alloycitations
Places of action
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article
The Hydrogen Ductilisation Process (HyDP) for shaping NdFeB magnets
Abstract
One of the major drawbacks of NdFeB–based, fully dense, sintered magnets is that they are hard and extremely brittle. Therefore, in order to produce the final shape and precise dimensions, they often have to be ground and this process is time consuming, energy intensive and produces a significant amount of waste material which is not readily recyclable. This paper reports a potentially new and exciting application of hydrogen as a promising processing tool in which the normally brittle Nd2Fe14B based intermetallic could be compressed at room temperature in a ductile, disproportionated condition and then restored to its original state by the removal of the hydrogen under partial vacuum at elevated temperatures. Under appropriate conditions, this stage can also produce a useful degree of anisotropy. This paper describes the salient feature of this process which has been called the Hydrogen Ductilisation Process (HyDP) and describes possible applications of the HyDP in the production of NdFeB-type permanent magnets.