| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Correlating the Degree of Alignment and Physical Interactions during the Processing of Anisotropic Bonded Magnets |
| Author(s) |
Ikenna Nlebedim, Xubo Liu, Huseyin Ucar, Parans Paranthaman |
| On-Site Speaker (Planned) |
Ikenna Nlebedim |
| Abstract Scope |
We will present the correlation between multiple physical parameters that can be controlled during the processing of anisotropic bonded magnets, including magnetic loading fraction, changes in binder viscosity, applied magnetic field and the degree of alignment. Bonded magnets were produced by extrusion using anisotropic MQA powder (40 and 50 vol.%) and ethylene-vinyl acetate. Our results suggest that less work is done by the magnetic field to align the 50 vol.% sample, compared to the 40 vol.% sample. This behavior is due to competing interactions, i.e., Zeeman energy, magnetostatic energy, and the drift force between molten binder and particles. Understanding and controlling the relationship between these parameters is important for developing high performance bonded magnets, while reducing the rare earth contents. We will show how the interactions can be leveraged in producing bonded magnets as a means of addressing the potential disruption in the supply of rare earths for permanent magnets. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Additive Manufacturing, Other |