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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Acknowledgments
This work is supported by the AFOSR contract # FA955009C0025. Thanks to Professor Kai Liu and Dr. Randy K. Dumas of the Department of Physics at the University of California, Davis, for the measurement of magnetic properties.
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the US Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the US Department of Energy or the United States Government.
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Dupuy, A.D. et al. (2019). Consolidation and Behavior of FeCoV Soft Magnetic Materials via Spark Plasma Sintering. In: Cavaliere, P. (eds) Spark Plasma Sintering of Materials. Springer, Cham. https://doi.org/10.1007/978-3-030-05327-7_16
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DOI: https://doi.org/10.1007/978-3-030-05327-7_16
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