About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Thermodynamic Investigation of Rare-Earth Reduced Magnet Systems |
| Author(s) |
Kate L.M. Elder, Emily Moore, Scott Peters, Brandon Bocklund, Akila Raja, German Samolyuk, Olena Palasyuk, Andriy Palasyuk, David Parker, Aurelien Perron, Scott McCall |
| On-Site Speaker (Planned) |
Kate L.M. Elder |
| Abstract Scope |
There exists a need to develop rare-earth reduced magnets with minimal amounts of critical metals. When valuable rare earth elements are mined, Ce is often extracted as a co-product which can be used to produce low-cost Ce-containing permanent magnets. Thermodynamic modeling based on the CALPHAD (CALculation of PHAse Diagrams) method is used to predict the phase stability of materials systems. Using this method, the thermodynamics of Ce-Fe-X system are explored as rare-earth reduced magnet systems and coupled with experimental and density functional theory (DFT) data to assess Gibbs energy functions using ESPEI and PyCalphad software. This work was supported by the
Critical Materials Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Materials and Manufacturing Technologies Office. Work at Lawrence Livermore National Laboratory (LLNL) was conducted under DOE Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Phase Transformations, Modeling and Simulation |