| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Heterostructured and Gradient Materials (HGM VI): Principle, Processing and Properties
|
| Presentation Title |
Strain-Dependent Microstructure and Magnetic Properties of Ferro- and Antiferromagnetic Composites by Severe Plastic Deformation |
| Author(s) |
Michael Zawodzki, Lukas Weissitsch, Andrea Bachmaier |
| On-Site Speaker (Planned) |
Andrea Bachmaier |
| Abstract Scope |
The development of materials with tailored properties for individual applications has been the goal of materials science for many years. This study highlights the ability of severe plastic deformation to generate and tune the magnetic properties of functional composites by controlling their microstructural features. Various composites consisting of different ferromagnetic or ferro- and antiferromagnetic constituents were synthesized by high pressure torsion of powder blends. With increasing strain, different composite microstructures are achieved in which the individual magnetic phase sizes are in the ultra-fine grained and nanocrystalline range. The magnetic properties are measured using SQUID magnetometry at different local positions over the sample radius, which allows the mapping of gradual changes in magnetic properties. It is shown that the magnetic exchange interactions and the resulting magnetic performance strongly depend on the microstructure of the composites. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Magnetic Materials, Characterization |