On the optimization of soft-magnetic properties of metallic glasses by dynamic current annealing

Author

Escobar, Marco-Antonio ; Yavari, A. Reza ; Barrue, Richard ; Perron, Jean Claude

Author_Institution

Inst. Nat. Polytech. de Grenoble, St. Martin d´´Heres, France

Volume

28

Issue

4

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

1911

Lastpage

1916

Abstract

A dynamic relaxation process has been developed that allows optimization of the soft-magnetic properties of ferromagnetic amorphous tapes during the winding process using Joule heating. Best magnetic properties of commercial FeSiB amorphous tapes are attained after only about ten seconds of annealing in air far below the crystallization temperatures but above the Curie temperature. It is found that structural and stress relaxation phenomena follow nearly the same temperature dependences in this annealing range

Keywords

boron alloys; coercive force; ferromagnetic properties of substances; glass structure; iron alloys; magnetic annealing; magnetic properties of amorphous substances; metallic glasses; silicon alloys; stress relaxation; winding (process); FeSiB amorphous tapes; Joule heating; annealing in air; coercive field; dynamic current annealing; dynamic relaxation process; ferromagnetic amorphous tapes; metallic glasses; optimization; soft-magnetic properties; stress relaxation phenomena; structural relaxation phenomena; temperature dependences; winding process; Amorphous materials; Annealing; Compressive stress; Crystallization; Glass; Internal stresses; Kinetic theory; Magnetic domains; Temperature; Tensile stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.144747

Filename

144747