DocumentCode :
765356
Title :
Static and Dynamic Properties of Fe-Si-B-Nb-Cu Nanocrystallized Ferromagnetic Glass-Coated Microwires From 20 
C to 350 C
C to 350 CAuthor :
Dudek, Christophe ; Adenot-Engelvin, Anne-Lise ; Acher, Olivier
Author_Institution :
CEA Le Ripault, Monts
Volume :
42
Issue :
10
fYear :
2006
Firstpage :
2787
Lastpage :
2789
Abstract :
In this paper, nanocrystallized glass coated microwires have been elaborated. Their magnetic properties have been determined and compared to amorphous Co-based microwires. We studied two alloys in the Finemet family and two geometries of microwires. We observed a dependence of the magnetic anisotropy with both the composition and the diameters of the microwires. We also performed permeability measurement in the 200 MHz to 4 GHz range up to 350degC. We report a fair stability of the microwave properties, and also their reversible behavior. These properties are very attractive for high frequency high temperature applications. This contrasts with Co-based microwires that exhibit poor thermal stability. The origin of the anisotropy in nanocrystallized microwires is discussed
Keywords :
boron compounds; ferromagnetic materials; iron compounds; magnetic permeability measurement; nanostructured materials; niobium compounds; silicon compounds; thermal stability; 0.2 to 4 GHz; 20 to 350 C; Fe-Si-B-Nb-Cu; amorphous microwires; ferromagnetic microwires; finemet; giant magnetoimpedance; glass-coated microwires; magnetic properties; microwave permeability; nanocrystallized microwires; permeability measurement; thermal stability; Amorphous materials; Frequency; Geometry; Glass; Magnetic anisotropy; Magnetic properties; Performance evaluation; Permeability measurement; Stability; Temperature; Finemet; giant magnetoimpedance; microwave permeability; nanocrystallized microwires;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2006.879902
Filename :
1704439
Link To Document :
