Abstract
Thin Fe-6.4wt.%Si ribbons were produced by melt spinning. High-temperature recrystallizations, performed at 1025 degrees C in a hydrogen atmosphere, were found to produce the lowest H/sub c/ values (19 A/m). Further agings were carried out at 50 degrees C intervals in the range 400-700 degrees C to optimize the magnetic properties. For all ribbons, H/sub c/ (60 Hz and DC), the maximum permeability, the saturation magnetostriction, and the effective anisotropy constant were measured. In general, the agings did little to improve the magnetic properties, and those around 600 degrees C resulted in their deterioration. Extensive transmission-electron-microscope investigations of the ribbons indicate that the dendritic structure of the as-cast material disappears after recrystallization, leading to a more uniform distribution of Si as well as a more homogeneous ordering. The 600 degrees C aging results in a marked anisotropy in the B2 antiphase boundaries and the growth of oxide particles, which lead to a deterioration of the magnetic properties.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
