Highlight Lecture
WEB DPC-STEM observation of magnetic domains in Fe-Si alloy manufactured by laser beam melting
Tuesday (22.09.2020) 15:00 - 15:15 C: Characterization 1 Part of:Soft magnetic materials have important applications in electrical devices. Magnetic domains in soft magnetic materials have strong implications on their soft magnetic properties. The present investigation observes the in-situ magnetic domain evolution upon exposure to magnetic field in Fe-Si alloy. The Fe-Si alloy is manufactured by laser beam melting (LBM). The LBM processing parameter are optimised to reduce porosity. The observation of magnetic domains is done by differential phase-contrast scanning transmission electron microscopy (DPC-STEM). The DPC-STEM images are captured in near field free conditions, before and after exposure to a magnetic field. Thus the evolution of magnetic domains upon the application of magnetic field can be observed. The mean domain width changes upon the application of magnetic field.
