| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
New, High-Tc Iron Rich Ferromagnets in Ce – Fe – RM Alloys (RM = Refractory Metals) |
| Author(s) |
Olena Palasyuk, Akila Raja, Andriy Palasyuk |
| On-Site Speaker (Planned) |
Olena Palasyuk |
| Abstract Scope |
Ce – Fe ferromagnetic phases are very economical, considering abundance and low cost of Ce and Fe. They are alternative for RE-magnets containing critical RE like Nd, Sm and Dy, as well as critical Co. We discovered a series of new ferromagnets, (Ce,RM)Fe3 phases (RM = refractory metals) (PuNi3-type, R-3m). In contrast to known Ce – Fe binary compounds, not ferromagnetic at room temperature, the new RM-doped phases are strongly ferromagnetic with Curie temperatures all beyond 550 K. The saturation magnetizations of the system at room temperature range within 9.3 – 10.2 kG at 3T external field. These are intrinsic indicators of practical 20 – 25 MGOe permanent magnet. The material contains no critical elements and allows utilization of abundant domestic Ce (50 % of Mountain Pass ore). All the above factors place it well along the target to win industry adoption for substitutes of the rare earth magnets. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Characterization, Other |