The influence of nanocrystalline microstructure on the magnetic properties of a wire shaped ferromagnetic alloy
Conference
·
· IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6999013
- C.S.I.C., Madrid (Spain). Instituto de Ciencia de Materiales
- Univ. of Sheffield (United Kingdom). Dept. of Engineering Materials
The magnetic properties of nanocrystalline Fe[sub 73.5]Cu[sub 1]Nb[sub 3]Si[sub 13.5]B[sub 9] alloy wire are reported for the first time. The evolution of the structure and of the magnetic properties of the wire, which was initially cast into the amorphous state, were studied as a function of annealing temperature, T[sub ann]. In the as-cast glassy state, the wires showed typical bistable magnetic behavior while, after devitrification to a nanocrystalline structure based on [alpha]-FeSi grains of mean diameter [approximately] 10nm(T[sub ann]=550 C), the coercivity and magnetostriction decreased substantially and bistability was lost. The bistability could however, be recovered on application of a torsional stress. Treatment at T[sub ann] > 600 C lead to grain growth and eventually to precipitation of ultrafine boride, resulting in drastic magnetic hardening.
- OSTI ID:
- 6999013
- Report Number(s):
- CONF-930416--
- Conference Information:
- Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 29:6Pt1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
COPPER ALLOYS
DATA
EXPERIMENTAL DATA
FERROMAGNETIC MATERIALS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
MICROSTRUCTURE
NIOBIUM ALLOYS
NUMERICAL DATA
PHYSICAL PROPERTIES
SILICON ALLOYS
TEMPERATURE DEPENDENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
COPPER ALLOYS
DATA
EXPERIMENTAL DATA
FERROMAGNETIC MATERIALS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
MICROSTRUCTURE
NIOBIUM ALLOYS
NUMERICAL DATA
PHYSICAL PROPERTIES
SILICON ALLOYS
TEMPERATURE DEPENDENCE