| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Amorphous and Nanocrystalline Soft Magnetic Alloy Rapid Annealing via Laser Processing |
| Author(s) |
Tyler W. Paplham, David W. Greve, Jagannath Devkota, Paul R. Ohodnicki |
| On-Site Speaker (Planned) |
Tyler W. Paplham |
| Abstract Scope |
A standard practice for minimizing coercivity in nanocrystalline alloys is the addition of elements such as Nb, Cu, etc. to both increase nucleation site density and limit crystallite growth, at cost of reducing saturation. Alternatively, rapid heating to above Tx1 followed by quenching can achieve similarly reduced losses without the need for such non-ferromagnetic additions, while also being easily compatible with continuous in-line processing. The most thoroughly investigated rapid annealing methods are flash and susceptor-based annealing, but recent electromagnetic field-based techniques such as induction and laser-based annealing have also been suggested. These field-based techniques can have heating rates orders of magnitude greater than more conventional ones, and as such can serve as potential avenues for achieving further refined grain size or more unique performance characteristics. Here we examine the distinct advantages and disadvantages of such techniques, with considerations from both modeling and practical perspectives. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Modeling and Simulation, |