Abstract
Soft magnetic materials, in contrast to permanent (or hard) magnets, are easily magnetized and demagnetized. These materials are ideal for use in inductor and transformer cores, where the current flow and magnetic field are switched rapidly. In this chapter, we examine the synthesis and fabrication of FeCo-2 wt%V (FeCoV) using spark plasma sintering (SPS). FeCoV is a soft magnetic material with a high saturation magnetization, low coercivity, and high Curie temperature, making it ideal for high-temperature and power-dense applications. Highly dense bulk FeCoV soft magnets were fabricated using mechanically alloyed powders. The microstructure of the mechanically alloyed powders and consolidated nanostructured bulk FeCoV soft magnets were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), and their magnetic properties were measured and are also discussed.
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