About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
| Presentation Title |
Mn-based Permanent Magnets: from Thin Film Micromagnets to Bulk Magnets Obtained by Hot-pressing of Gas-atomized Powder |
| Author(s) |
Carla Muñoz-Rodríguez, Melek Villanueva, Le Feng, Elena H. Sánchez, Javier Rial, Julio Camarero, Cristina Navío, Ester M. Palmero, Torsten Mix, Thomas G. Woodcock, Peter S. Normile, José A. De Toro, Alberto Bollero |
| On-Site Speaker (Planned) |
Alberto Bollero |
| Abstract Scope |
MnAl and MnBi are considered interesting permanent magnets (PMs) for several applications (energy, transport...). This presentation will show first the possibility of controlling the orientation of the magnetic anisotropy (perpendicular/parallel to the film plane) in high-coercive MnBi thin films [1] and, moreover, exploring the growth of single-crystal MnBi micromagnets.
The second part will focus on tuning PM properties in MnAl(C) synthesized by gas-atomization and ultrafast-milling (30-270s) [2]. The resulting powder was used to produce polymer/PM composites for 3D-printing in the shape of high-quality continuous wire [3]. A different approach (hot-pressing) allowed us to prepare isotropic magnets (density: 94-98%) starting from ε-phase and managing, in a single-step, the ε-to-τ transformation and compaction. Both approaches will be discussed.
[1] Villanueva, AIP Advances. 9, 035325 (2019)
[2] Rial, Acta Mater. 157, 42 (2018) & Engineering. In press (2019)
[3] Palmero, Sci. Technol. Adv. Mater. 19, 465 (2018) |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |