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Large Barkhausen effect and Matteucci effect in cold-drawn and torsion annealed amorphous magnetostrictive wires

Journal Article · · IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA)

Amorphous magnetostrictive wires fabricated by super-rapid quenching in water exhibit a remarkably stable Barkhausen effect and Matteucci effect in the as-prepared state. The Matteucci effect in as-prepared wire is under 1 mV. When the wire is drawn or made shorter than 70 mm, the Barkhausen effect vanishes. In this work, the amorphous magnetostrictive wire was cold drawn and then annealed under torsional stress; the wires obtained had a large Matteucci effect, as well as a large Barkhausen effect even when as short as 25 mm. These wires were used as devices for pulse generation. Their magnetic properties are studied.

OSTI ID:
6961859
Journal Information:
IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA) Vol. 3:7; ISSN ITJJE; ISSN 0882-4959
Country of Publication:
United States
Language:
English