NDLI: New FeNbB-based bulk amorphous and nanocomposite soft magnetic alloys

Content Provider	IEEE Xplore Digital Library
Author	Chiriac, H. Lupu, N.
Copyright Year	1965
Abstract	This paper deals with results on preparation and magnetic characterization over a wide frequency range of (Fe,Co,Ni)/sub 70/Nb/sub 10/B/sub 20/ new bulk amorphous and nanocomposite alloys. Their structure is either fully amorphous or consisting of very fine 5-10 nm /spl alpha/-Fe(Co) particles dispersed within the amorphous matrix. Saturation inductions of about 0.85 T, relative permeabilities of 7/spl times/10/sup 4/ (at 80 Hz), and coercive fields of 40 A/m are determined for new Fe-Nb-B-based bulk amorphous torroids, whereas in nanocomposite cast bars, H/sub c/ varies between 180 and 360 A/m in the as-cast state and decreases by about half when the refined nanocrystalline structure is achieved. In the frequency range 50 Hz to 2 kHz, magnetic permeability decreases from 7/spl times/10/sup 4/ to 0.5/spl times/10/sup 4/. The potential impact of these materials on engineering applications is presented in connection with their specific magnetic behavior and casting ability.
Sponsorship	IEEE Magnetics Society
Starting Page	3289
Ending Page	3291
Page Count	3
File Size	233043
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Amorphous materials Amorphous magnetic materials Soft magnetic materials Saturation magnetization Frequency Permeability Magnetic materials Niobium alloys Bars Nanostructures soft magnetic materials Bulk amorphous magnetic materials bulk magnetic nanocomposites properties-related applications
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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