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(Fe-Ni)-based glassy alloy containing Nb and Cu with excellent soft magnetic properties

Journal of Non-Crystalline Solids, ISSN: 0022-3093, Vol: 609, Page: 122234
2023
  • 8
    Citations
  • 0
    Usage
  • 7
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

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  • Citations
    8
  • Captures
    7
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Findings on Nanostructures Detailed by Investigators at National University of Science and Technology [(Fe-ni)-based Glassy Alloy Containing Nb and Cu With Excellent Soft Magnetic Properties]

2023 JUL 17 (NewsRx) -- By a News Reporter-Staff News Editor at Nanotech Daily -- Data detailed on Nanotechnology - Nanostructures have been presented. According

Article Description

Magnetic properties of amorphous Fe 38 Ni 38 B 12 P 5 Si 3 Nb 3 Cu 1 alloy ribbons have been investigated in as-spun and annealed states with the aim of developing an ultrasoft magnetic material which is expected to be used in advanced information data devices. A small amount of simultaneous addition of Cu and Nb to a FeNi-metalloid amorphous alloy system caused the change in crystallization process from eutectic type to the primary one. After annealing at the temperature just below the glass transition temperature (T g ), the glassy alloy ribbon exhibit excellent soft magnetic properties, very low coercive force of 1 A/m and extremely high effective permeability of 7.5·10 4 at 1 kHz which have not been obtained for any kinds of Fe- and Ni-based amorphous alloys, in spite of relatively low saturation magnetic flux density of 0.86 T. The further increase in annealing temperature causes the precipitation of nanoscale fcc particles with a size of about 7 nm including a high density of planar faults and the resulting nanostructure alloy also exhibits good soft magnetic properties with low H c below 2 A/m. The formation of nanostructure fcc-(Fe,Ni) + glass soft magnetic alloys is also novel. The syntheses of the new Fe-Ni-based glassy and nanocrystalline [fcc(Fe,Ni) + glass] alloy ribbons with ultrasoft magnetic properties are encouraging as a new type of energy saving-type soft magnetic material.

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