scholarly journals An excellent soft magnetic Fe/Fe3O4-FeSiAl composite with high permeability and low core loss

2019 ◽  
Vol 14 ◽  
pp. 102498 ◽  
Author(s):  
Zhenguo Hou ◽  
Pengfei Yan ◽  
Bai Sun ◽  
Hosameldeen Elshekh ◽  
Biao Yan
Keyword(s):  
Core Loss ◽  
High Permeability ◽  
Soft Magnetic

Nanocrystalline Soft Magnetic Fe-M-B (M = Zr, Hf, Nb) “NANOPERM,” Fe-M-O (M = Zr, Hf, Rare Earth) Alloys and Their Applications

1999 ◽  
Vol 577 ◽  
Author(s):  
A. Makino ◽  
A. Inoue ◽  
T. Masumoto
Keyword(s):  
Rare Earth ◽  
Amorphous Phase ◽  
High Frequency ◽  
Core Loss ◽  
Dominant Factor ◽  
Switching Converters ◽  
High Permeability ◽  
Soft Magnetic ◽  
Electric Equipment ◽  
Partial Crystallization

ABSTRACTNew soft magnetic nanocrystalline materials in Fe-M-B (M = Zr, Hf, Nb) and Fe-M-O (M = Zr, Hf, rare earth) systems have been fabricated by use of partial crystallization of melt-spun amorphous phase and sputtering-induced partial crystallization, respectively. These alloys have a mixed structure of nanoscale a-Fe grains and an amorphous phase containing large amount of M, B and M, O, respectively. This structural property should be a dominant factor for achieving good soft magnetic properties in both alloys. The Fe85.5Zr2Nb4B8.5 ribbon exhibits a high mag- netic flux density (Bs) of 1.64 T and a high permeability of 60,000 at 1 kHz as well as a very low core loss of 0.09 W/kg at B = 1.4 T and 50 Hz. The soft magnetic Fe-M-O films with high O content of 10-35 at.% maintain high permeability up to the high frequency above 100 MHz be- cause of higher electrical resistively of 6 to 23 µΩm than those of other conventional soft mag- netic alloy films. The Fe-M-B ribbons "NANOPERM" should be more suitable for low frequen- cy transformers. The Fe-M-O films are useful for high frequency applications such as thin-film inductors and transformers for micro switching converters for portable electric equipment.

MUMETAL

Alloy Digest ◽  
1991 ◽  
Vol 40 (12) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Alloy ◽  
High Permeability ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy ◽  
Very High ◽  
Specialty Metals

Abstract MUMETAL is a very high permeability soft magnetic alloy. (See also Alloy Digest Ni-25, April 1956.) This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating. Filing Code: Ni-398. Producer or source: Spang Specialty Metals.

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