Co-evolution of Microstructure and Magnetic Properties in Magnetically Aligned MnBi-Bi Composites

Microstructural characterization workflows suitable for analysis of magnetic composites have become increasingly important due to growing interest in the development of such materials for applications ranging from rare-earth free permanent magnets to energy conversion and storage devices Here, we discuss the use of correlative imaging, spectroscopy, and diffraction techniques in a scanning electron microscope (SEM) to track the microstructural evolution of MnBi-Bi composites synthesized via melt quenching and magnetic field annealing, and then correlate these microstructural changes with the materials' magnetic properties.