| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Magnetic Materials for Sensors, Power, and Multifunctional Applications
|
| Presentation Title |
Flash Annealing of FeNi-based Metal Amorphous Nanocomposite |
| Author(s) |
James Egbu, Ahmed Talaat, Kevin Byerly, Paul Ohodnicki, Michael McHenry |
| On-Site Speaker (Planned) |
James Egbu |
| Abstract Scope |
Fe-based metal amorphous nanocomposite (MANC) alloys are an emerging class of soft magnetic materials that have shown to significantly lower core losses at high operating frequencies while maintaining high saturation induction and tunable permeability in high-speed motor applications. MANCs are produced by heat treating an amorphous metallic ribbon (AMR) to induce primary nanocrystallization. The nanocrystals that form provide high magnetic induction while an exchange coupled continuous amorphous phase provides high electrical resistivity. This work presents a comparison of the traditional conventional annealing process of AMR to a rapid annealing process by means of pre-heated Copper blocks that has been shown to enhance soft magnetic properties in amorphous and nanocrystalline materials. A systematic annealing study of (Fe70Ni30)80Nb4B14Si2 and (Fe70Ni30)85Nb0.5B14.5Si0 alloys and corresponding magnetic and structural characterizations results are presented in this work. We discuss magnetic properties in comparison with state of the art achieved for (Fe70Ni30)80Nb4B14Si2 using a two-step annealing process. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Other |