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

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4 Author(s)
Escobar, M.-A. ; Inst. Nat. Polytech. de Grenoble, St. Martin d''Heres, France ; Yavari, A.R. ; Barrue, R. ; Perron, J.C.

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

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Magnetics, IEEE Transactions on  (Volume:28 ,  Issue: 4 )