Nanocrystalline soft magnetic materials with a saturation magnetization greater than 2 T

•Effect of Co addition on ultra-rapidly annealed HiB-Nanoperm investigated.•Nanocrystalline (Fe0.8Co0.2)87B13 displays a Js of 2.02 T and a Hc of 9.3 A/m.•Addition of 1 at.% Cu improves magnetic softness for Co-containing HiB-Nanoperm.•(Fe0.8Co0.2)86B13Cu1 displays a Js of 2.00 T and a Hc of 7.0 A/m...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2019-09, Vol.485, p.180-186
Main Authors: Parsons, R., Li, Z., Suzuki, K.
Format: Article
Language:English
Subjects:
Alloy systems
Amorphous
Annealing
Cobalt
Coercivity
Heating rate
Magnetic materials
Magnetic properties
Magnetic saturation
Magnetism
Nanocrystalline
Nanocrystals
Polarization
Rapid annealing
Saturation magnetization
Soft magnetic material
Softness
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Summary:•Effect of Co addition on ultra-rapidly annealed HiB-Nanoperm investigated.•Nanocrystalline (Fe0.8Co0.2)87B13 displays a Js of 2.02 T and a Hc of 9.3 A/m.•Addition of 1 at.% Cu improves magnetic softness for Co-containing HiB-Nanoperm.•(Fe0.8Co0.2)86B13Cu1 displays a Js of 2.00 T and a Hc of 7.0 A/m.•Ultra-rapid annealing required for magnetic softness in Co-containing HiB-Nanoperm. The effect of Co on the magnetic properties of ultra-rapidly annealed (heating rate > 104 K/s, annealing time 
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2019.04.052