| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Powder consolidation of Ce-based permanent magnets |
| Author(s) |
Alfred Amon, Eunjeong Kim, Alexander Wilson-Heid, Ashley N Lee, Joseph Boro, Alexander Baker |
| On-Site Speaker (Planned) |
Alfred Amon |
| Abstract Scope |
Permanent magnets based on the abundant rare earth cerium are attracting renewed interest, as projections for demand growth exceed the expected supply of neodymium-based magnets. Promising magnetic performance was demonstrated for Ce containing magnets based on the ThMn12-type intermetallic phase in thin films and powders, but manufacturing of bulk magnets, remains a major obstacle. The thermodynamic instability of these materials results in a narrow window of processing conditions and has hitherto prevented the realization of optimum performance. We have investigated the suitability of advanced powder processing methods such as laser powder bed fusion and spark plasma sintering for the preparation of bulk magnets from powders of the CeFe12-xTixN phase. After establishing process-structure-property relationships for the material, we have investigated the processing regimes for obtaining suitable microstructures for permanent magnet performance while retaining the targeted chemical composition of the intermetallic phase. Work performed at LLNL under contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Additive Manufacturing, Powder Materials |