Dresden 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
MM: Fachverband Metall- und Materialphysik
MM 24: Invited Talk: Andrea Bachmaier
MM 24.1: Invited Talk
Wednesday, March 11, 2026, 15:00–15:30, SCH/A251
Recent advances in processing of rare-earth free MnBi magnets by severe plastic deformation — •Andrea Bachmaier1, Lukas Weissitsch-Reiner1, Martin Kraus1, Michael Meindlhumer2, and Stefan Wurster1 — 1Erich Schmid Institute of Materials Science, Austrian Academy of Sciences — 2Department of Materials Science, Montanuniversität Leoben
Magnetic materials are key materials needed for Green energy technologies. The research on rare-earth free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns.
Severe plastic deformation processing of magnetic materials and its influence on the magnetic properties have attracted increasing research interest in the last years.
In this contribution, the use of high-pressure torsion deformation to synthesize the rare-earth free α-MnBi phase is in focus. Our recent experimental results of the process-structure-property relationships that link chemistry, synthesis and processing parameters with microstructure evolution and magnetic properties are discussed. An emphasis is put on detailed characterization of the microstructure by backscattered electron imaging, electron backscattered diffraction as well as x-ray diffraction utilizing high energy synchrotron radiation since it strongly influences the magnetic properties.
Keywords: high-pressure torsion; powder processing; coercivity; non-rare earth