Archivio Istituzionale della RicercaDirect-current joule heating is exploited to reduce the brittleness of ferromagnetic Fe73.5Nb3Cu1S13.5B9 nanocrystallized from the amorphous state. An ordering process occurring before nanocrystallization is singled out and shown to be responsible for sample embrittlement and magnetic-permeability degradation. The process is partially avoided by properly choosing the heating conditions. Nanocrystalline ribbon strips having substantially higher ductility than furnace-annealed samples, and maintaining excellent soft magnetic properties, are easily obtained.
Improved Ductility of Nanocrystalline Fe73.5nb3cu1si13.5b9 Obtained By Direct-current Joule Heating / Allia, PAOLO MARIA EUGENIO ICILIO; P., Tiberto; M., Baricco; F., Vinai. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 63:(1993), pp. 2759-2761. [10.1063/1.110326]
Improved Ductility of Nanocrystalline Fe73.5nb3cu1si13.5b9 Obtained By Direct-current Joule Heating
ALLIA, PAOLO MARIA EUGENIO ICILIO;
1993
Abstract
Direct-current joule heating is exploited to reduce the brittleness of ferromagnetic Fe73.5Nb3Cu1S13.5B9 nanocrystallized from the amorphous state. An ordering process occurring before nanocrystallization is singled out and shown to be responsible for sample embrittlement and magnetic-permeability degradation. The process is partially avoided by properly choosing the heating conditions. Nanocrystalline ribbon strips having substantially higher ductility than furnace-annealed samples, and maintaining excellent soft magnetic properties, are easily obtained.
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https://hdl.handle.net/11583/2498129
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