| 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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Wurster, Stefan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Stabilization of mechanical strength in a nanocrystalline CoCrNi concentrated alloy by nitrogen alloying
- 2024Influence of Severe Plastic Deformation on the Magnetic Properties of Sm–Co Permanent Magnetscitations
- 2023Magnetic Properties of a High-Pressure Torsion Deformed Co-Zr Alloycitations
- 2023Toxic element-free Ti-based metallic glass ribbons with precious metal additionscitations
- 2022Magnetron Sputtered Non‐Toxic and Precious Element‐Free TiZrGe Metallic Glass Nanofilms with Enhanced Biocorrosion Resistancecitations
- 2022Oxide-stabilized microstructure of severe plastically deformed CuCo alloyscitations
- 2022Tuning mechanical properties of ultrafine-grained tungsten by manipulating grain boundary chemistrycitations
- 2021Rapid solidification and metastable phase formation during surface modifications of composite Al-Cr cathodes exposed to cathodic arc plasmacitations
- 2021Nanocrystalline FeCr alloys synthesised by severe plastic deformation – A potential material for exchange bias and enhanced magnetostrictioncitations
- 2021Sampling the Cu–Fe–Co phase diagram by severe plastic deformation for enhanced soft magnetic propertiescitations
- 2020Strain Induced Anisotropic Magnetic Behaviour and Exchange Coupling Effect in Fe-SmCo5 Permanent Magnets Generated by High Pressure Torsioncitations
- 2011Influence of Impurities on the Fracture Behaviour of Tungstencitations
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article
Influence of Severe Plastic Deformation on the Magnetic Properties of Sm–Co Permanent Magnets
Abstract
<jats:p>High pressure torsion (HPT) is presented as a new fabrication route to produce bulk Sm–Co magnets with a strongly refined microstructure down to the nanometer regime. The initial powders, based on the compositions SmCo<jats:sub>5</jats:sub>, Sm<jats:sub>2</jats:sub>Co<jats:sub>7</jats:sub> and Sm<jats:sub>2</jats:sub>Co<jats:sub>17</jats:sub>, are compacted and subsequently deformed by HPT. The microstructural evolution in dependence on the applied deformation parameters is characterized by electron microscopy and the effect of HPT on the phase stability is monitored by synchrotron X‐ray diffraction. An increasing amount of applied strain leads to a stronger reduction in grain size while strain localization counteracts a homogeneous microstructural refinement. The positive effect of elevated deformation temperatures is demonstrated for Sm<jats:sub>2</jats:sub>Co<jats:sub>17</jats:sub>, which promotes homogeneous grain refinement, but causes strain‐induced phase transformations at the same time, strongly affecting the magnetic behavior. Superconducting quantum interference device magnetometry is used to characterize the magnetic properties after HPT deformation, which indicates the formation of a magnetic texture depending on the respective phase.</jats:p>