Soft magnetic powder-core composites of Fe{sub 90}Zr{sub 7}B{sub 3} and Fe{sub 49}Co{sub 21}Al{sub 5}Ga{sub 2}P{sub 9.65}C{sub 5.75}B{sub 4.6}Si{sub 3} alloys

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2164413· OSTI ID:20788125

Turgut, Zafer; Attenweiler, Thomas; Huang, Meiqing; Horwath, John C; Fingers, Richard T ^[1]

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1. UES Inc., 4401 Dayton-Xenia Road, Dayton, Ohio 45432 (United States)

Amorphous and nanocrystalline alloys in ribbon form exhibit excellent soft magnetic properties, but their forms are limited to tape wound cores. Complex shapes require the implementation of a powder metallurgical approach resulting in reduced permeabilities. The present study investigates Fe-based Fe{sub 90}Zr{sub 7}B{sub 3} (C1) and Fe{sub 49}Co{sub 21}Al{sub 5}Ga{sub 2}P{sub 9.65}C{sub 5.75}B{sub 4.6}Si{sub 3} (C2) melt-spun ribbons as precursors for compacted powder cores. Single-roller melt spinning of C1 produced partially crystallized structures while C2 resulted in amorphous ribbons. Annealing studies were carried out based on the crystallization temperatures of various phases extracted from M(T) measurements. In ribbon form and under optimum annealing conditions, C1 revealed a 1.88 T saturation flux density (B{sub s}) and 44 A/m coercivity (H{sub c}), while C2 exhibited a B{sub s} of 0.78 T and H{sub c} of 2.4 A/m.

• OSTI ID: 20788125
• Journal Information: Journal of Applied Physics, Vol. 99, Issue 8; Other Information: DOI: 10.1063/1.2164413; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ANNEALING
BORON ALLOYS
COBALT ALLOYS
COERCIVE FORCE
COMPOSITE MATERIALS
CRYSTALLIZATION
FLUX DENSITY
GALLIUM ALLOYS
IRON ALLOYS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
NANOSTRUCTURES
PERMEABILITY
PHOSPHORUS ADDITIONS
POWDER METALLURGY
POWDERS
SILICON ALLOYS
ZIRCONIUM ALLOYS