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Characteristics of Fe-Si-B-P-Cu Nanocrystalline Soft Magnetic Alloy Powders With High Bs.
- Source :
-
IEEE Transactions on Magnetics . Oct2011, Vol. 47 Issue 10, p2845-2847. 3p. - Publication Year :
- 2011
-
Abstract
- Nanocrystalline soft magnetic alloy powders produced by heat treating amorphous powders are expected to improve properties and miniaturize dust cores because of their low coercive force H_c and high saturation magnetic flux density B_s. By water atomization process, we successfully obtained quenched Fe-Si-B-P-Cu alloy powders with spherical particle shape. The obtained powders have different average particle sizes of 2.0, 3.0, 5.0, and 8.5 \mum. After annealing at 723 K, the as-quenched alloy powders are crystallized and B_s of the nanocrystalline alloy powders with Fe83.3Si4B8P4Cu0.7 and Fe84.8Si2B10P2Cu1.2 exhibit high B_s of 1.72 and 1.76 T, respectively. Core loss characteristics of the dust cores are found to be dependent on amorphous stability of the as-quenched powders. Thus, the Fe83.3Si4B8P4Cu0.7 nanocrystalline alloy powder with an average particle size of 3.0 \mum exhibits the best core loss of 1461 kW/m^3 (B_m=50\ mT, f=300\ kHz). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 47
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 65934131
- Full Text :
- https://doi.org/10.1109/TMAG.2011.2158518