About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
DREAM: Development of Rare-Earth Alternatives for Magnets |
| Author(s) |
Joshua Berry, Jonathon Markanday, Yunus Azakli, Jack Batty, Robert Deffley, Katerina Christofidou |
| On-Site Speaker (Planned) |
Joshua Berry |
| Abstract Scope |
Permanent magnets based on rare-earth (RE) elements, exhibit exceptional performance but face limitations due to supply constraints and costs. As a result, there is growing interest in identifying alternative materials with reduced or no RE content. A combined computational and experimental workflow was employed to accelerate the discovery of such materials. Machine learning models trained on synthetic quantum mechanical data were used to predict Fe-based compositions, and interatomic potentials informed processing strategies through microstructural simulations. Experimental validation focused on synthesising these alloys via melt spinning to produce amorphous ribbons, followed by thermal treatments to promote phases with increased magnetic moment and uniaxial magnetocrystalline anisotropy. Detailed structural and magnetic characterisation was undertaken to assess phase formation, microstructural evolution, and magnetic performance. Composed of earth-abundant and inexpensive elements, these alloys demonstrate potential as RE-free permanent magnets and highlight the importance of processing and manufacturing in achieving the desired structure and functional properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Phase Transformations, |