| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
New Fe-rich Ferromagnets Without Critical Elements |
| Author(s) |
Akila Raja, Olena Palasyuk, Deborah Schlagel, Andriy Palasyuk |
| On-Site Speaker (Planned) |
Akila Raja |
| Abstract Scope |
A series of new Fe-rich (> 85 at. %) alloys containing non-critical rare earths (RE), have been explored in quaternary Ce-Fe-Zr-RM (RM = V-a and VI-a group refractory metals) systems. Arc melting the elements followed by an anneal at 1050 °C produced tetragonal ThMn<sub>12</sub>-type, uniaxial ferromagnets in a particular phase region. Their room temperature intrinsic magnetic characteristics vary within the ranges: M<sub>s</sub> ⁓ 10 - 11 kG, T<sub>C</sub> ⁓ 140 - 155 °C, H<sub>a</sub> ⁓ 35 - 40 kOe. High intrinsic properties and absence of critical rare earths make these alloys promising replacement candidates for commercial RE-magnets using supply-dependent elements like Nd, Dy, Sm and/or Co. The present study explores the composition-dependent structural changes of these newly developed alloys in relation with their magnetic properties. |
| Proceedings Inclusion? |
Planned: |