Title :
Nanostructured materials for soft magnetic applications produced by fast dc Joule heating
Author :
Allia, Paolo ; Tiberto, Paola ; Baricco, Marcello ; Knobel, Marcelo ; Vinai, Franco
Author_Institution :
Dipartimento di Fisica, Politecnico di Torino, Italy
fDate :
11/1/1994 12:00:00 AM
Abstract :
Amorphous Fe73.5Nb3Cu1Si13.5 B9 ribbons were submitted to fast direct current (dc) Joule-heating treatment in vacuum. The electrical resistance in the course of fast Joule heating displays distinctive features during the development of the nanocrystalline phase, which are explained using a recently developed theoretical model. The experimental parameters of the current annealing were optimized in order to obtain ductile soft magnetic materials using very high heating rates
Keywords :
amorphous magnetic materials; annealing; boron alloys; copper alloys; crystallisation; electrical resistivity; ferromagnetic materials; iron alloys; metallic glasses; nanostructured materials; niobium alloys; silicon alloys; soft magnetic materials; Fe73.5Nb3Cu1Si13.5B 9; amorphous Fe73.5Nb3Cu1Si13.5B9 ribbons; current annealing; ductile soft magnetic materials; electrical resistance; fast dc Joule heating; high heating rates; nanocrystalline phase; nanostructured materials; soft magnetic applications; Amorphous magnetic materials; Amorphous materials; Annealing; Displays; Electric resistance; Iron; Nanostructured materials; Niobium; Resistance heating; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
