| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Influencing Phase Development in Ferromagnetic Materials: Theory versus Practice |
| Author(s) |
Laura H. Lewis |
| On-Site Speaker (Planned) |
Laura H. Lewis |
| Abstract Scope |
Functional characteristics of magnetic materials are determined by microstructural attributes which are most often developed via thermal treatment to initiate nucleation, growth and phase transformation. Augmenting thermal energy with magnetic and strain energies can provide enhanced control of microstructural development in magnetic systems as well as offer options for energy-efficient manufacturing. To this end, additional energies were introduced during thermal processing, employing a custom-built furnace incorporating a passive, uniform magnetic field along with tensile stress. Differences in microstructure and response between samples annealed with and without augmenting energies were documented in a variety of functional systems including FeSiB, MnAl and equiatomic FeNi. While magnetic field-derived effects are typically attributed to a Zeeman-type energy, the magnitude of such a contribution is entirely too low to have an appreciable effect on nucleation or diffusion, indicating that other phenomena must be in play. Aspects of these scenarios will be presented and discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Phase Transformations, Energy Conversion and Storage |