High coercivity of partially devitrified glass-coated finemet microwires: effect of geometry and thermal treatment

High coercivity of partially devitrified glass-coated finemet microwires: effect of geometry and thermal treatment

The effect of annealing (at 300-700/spl deg/C) on coercivity of finemet-type Fe/sub 72.3+x/Cu/sub 1/Nb/sub 3.1/Si/sub 14.5-x/B/sub 9.1/(x=0 and 1.1) microwires has been studied. Strong magnetic hardening without deterioration of mechanical properties has been found at annealing temperatures around 5...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on magnetics 2000-09, Vol.36 (5), p.3015-3017
Hauptverfasser: Gonzalez, J., Zhukov, A., Zhukova, V., Cobeno, A.F., Blanco, J.M., de Arellano-Lopez, A.R., Lopez-Pombero, S., Martinez-Fernandez, J., Larin, V., Torcunov, A.
Format: Artikel
Sprache:eng
Schlagworte:
Annealing
Coatings
Coercive force
Coercivity
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Deterioration
Devitrification
Exact sciences and technology
Ferrous alloys
Fine-particle systems
Glass
Iron
Magnetic anisotropy
Magnetic properties
Magnetic properties and materials
Magnetism
Mechanical factors
Mechanical properties
Niobium
Perpendicular magnetic anisotropy
Physics
Small particles and nanoscale materials
Studies of specific magnetic materials
Temperature dependence
Thickness ratio
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The effect of annealing (at 300-700/spl deg/C) on coercivity of finemet-type Fe/sub 72.3+x/Cu/sub 1/Nb/sub 3.1/Si/sub 14.5-x/B/sub 9.1/(x=0 and 1.1) microwires has been studied. Strong magnetic hardening without deterioration of mechanical properties has been found at annealing temperatures around 500/spl deg/C for one of the sample (x=0). The exact value of coercivity, H/sub c/, and annealing temperature, T/sub ann/, corresponding to such maximum of H/sub c/ depend on the sample diameter and the glass coating thickness (ratio /spl rho/=d/D). Observed dependencies have been interpreted in terms of effect of magnetoelastic anisotropy in partially devitrified two-phase samples.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.908660