Nanocrystalline and nanocomposite SmCo{sub 2}Fe{sub 2}B magnets

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.538879· OSTI ID:400769

Gong, W; Hadjipanayis, G C ^[1]

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1. Univ. of Delaware, Newark, DE (United States). Dept. of Physics and Astronomy

The magnetic and structural properties of SmCo{sub 2}Fe{sub 2}B powders prepared by ball milling, mechanical alloying and melt-spinning have been studied. SmCo{sub 2}Fe{sub 2}B powders milled for 5 minutes and then aligned were found to e anisotropic by x-ray diffraction. An optimum coercivity of, Hc = 13.5 kOe, was obtained after milling for 120 minutes corresponding to a particle size in the ranges of 1--6 {micro}m. Mechanically alloyed powders were shown to have the highest coercivity, 16 kOe, after heat-treating at 600 C for 30 minutes. The melt-spun samples had a low coercivity due to an unidentified phase possibly with low anisotropy.

• OSTI ID: 400769
• Report Number(s): CONF-960425--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt2 Vol. 32; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

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