| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
F-6: Revisiting the Effect of Alloying Elements on Crystal Structure, Microstructure, and Magnetic Properties Samarium Cobalt Supermagnets |
| Author(s) |
Farhan Ishrak, Alex Helmer , Sanoj Karki, Tushar Borkar, Rajeev Gupta, Bharat Gwalani |
| On-Site Speaker (Planned) |
Farhan Ishrak |
| Abstract Scope |
Samarium-cobalt (SmCo) based rare-earth permanent magnets are desirable for electric vehicle motors due to their high magnetocrystalline anisotropy, large magnetic energy product, high curie temperature, good thermal stability, and corrosion resistance. Hexagonal SmCo5 magnets have high coercivity through domain wall pinning by precipitates of 2:17 phase. The addition of alloying elements improves high-temperature properties and refines the grain microstructure. Here, we investigate the influence of adding Fe, Cu, or Al to SmCo5 permanent magnets by high-energy ball milling followed by spark plasma sintering (SPS) of powder mix. We examine the effect of different SPS temperatures on grain morphology, interparticle reactions, correlative structural changes, and functional properties of resultant permanent magnets by advanced characterization techniques and magnetic measurements using magnetometry and magnetic force microscopy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Process Technology, Powder Materials |