Title :
Microstructural and magnetic observations of compacted FeCoV nanoparticles
Author :
Turgut, Zafer ; Fingers, Richard T. ; Piehler, Henry R. ; McHenry, Michael E.
Author_Institution :
Dept. of Mater. Sci. & Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
One attempt to improve core loss of electromagnetic machines is to utilize nanocrystalline alloys, which are predicted to have extremely soft magnetic properties. High magnetic saturation values and high Curie temperatures make iron-cobalt alloys attractive for such applications. In this work iron-cobalt-vanadium nanopowders were synthesized and compacted. The coated particles were characterized and examined in both the powder and compacted states. Higher than expected coercivities are reported and may be due to the inhomogeneous microstructure resulting from interactions with the vanadium
Keywords :
Curie temperature; cobalt alloys; coercive force; crystal microstructure; ferromagnetic materials; iron alloys; magnetic particles; nanostructured materials; powders; soft magnetic materials; vanadium alloys; FeCoV; coercivities; compacted FeCoV nanoparticles; compacted states; core loss; high Curie temperatures; high magnetic saturation; inhomogeneous microstructure; magnetic observations; microstructural observations; nanocrystalline alloys; nanopowders; powder; soft magnetic properties; Coercive force; Core loss; Iron alloys; Magnetic properties; Microstructure; Nanoparticles; Powders; Saturation magnetization; Soft magnetic materials; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
