| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Nanocrystalline Soft Magnetic Alloys for Extreme Temperature Applications |
| Author(s) |
Lauren Wewer, Alex Leary, Vladimir Keylin, Ronald Noebe, Kevin Byerly, Sam Kernion, Paul Ohodnicki |
| On-Site Speaker (Planned) |
Lauren Wewer |
| Abstract Scope |
Amorphous and nanocrystalline soft magnetic alloys are an area of interest due to their use in power electronics operating at high frequencies and temperatures, while experiencing low losses. As extreme environment applications in aviation and space increasingly require high performance soft magnetic materials, new alloy development is necessary to ensure functional stability at high temperatures approaching 500°C. With Curie temperatures approaching 1000°C, Co-based nanocrystalline alloys show promise in high temperature applications. Modified chemistries involving variations in glass former elements and ferromagnetic transition metals are explored to understand impacts on high temperature stability while retaining manufacturability through the melt spinning process followed by subsequent thermal annealing. In this presentation we overview impacts of chemistry and thermal processing on both microstructural and magnetic property stability for extreme temperature applications. Enhanced high temperature stability is demonstrated and explained through a combination of experimentation, thermodynamic simulation, and post processing annealing techniques. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, High-Temperature Materials, Phase Transformations |