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

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The effect of Co on the magnetic properties of ultra-rapidly annealed (heating rate > 104K/s, annealing time < 1 s) nanocrystalline (Fe1−xCox)87B13 with x = 0–0.5 has been investigated. A saturation magnetic polarization of 2.02 T is observed for x = 0.2 while maintaining a coercivity of 9.3 A/m. This represents a 0.1 T increase over existing Co-free HiB-Nanoperm alloys with a B content of 13 at.% and is directly comparable to conventional crystalline Fe-3 wt%Si. Ultra-rapid annealing is shown to be a requirement for producing magnetically soft materials in this alloy system. The effect of Cu on ultra-rapidly annealed nanocrystalline (Fe0.8Co0.2)87−yB13Cuy where y = 0–1.5 is also investigated. It is found that Cu is effective at improving the magnetic softness of Co-containing HiB-Nanoperm, with y = 1 displaying a Hc of 7 A/m and a saturation magnetic polarization of 2.0 T.

Original languageEnglish
Pages (from-to)180-186
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume485
DOIs
Publication statusPublished - 1 Sep 2019

Keywords

  • Amorphous
  • Cobalt
  • Nanocrystalline
  • Rapid annealing
  • Saturation magnetization
  • Soft magnetic material

Cite this

@article{ca507e41cc354cca848bcec02bd1d6a7,
title = "Nanocrystalline soft magnetic materials with a saturation magnetization greater than 2 T",
abstract = "The effect of Co on the magnetic properties of ultra-rapidly annealed (heating rate > 104K/s, annealing time < 1 s) nanocrystalline (Fe1−xCox)87B13 with x = 0–0.5 has been investigated. A saturation magnetic polarization of 2.02 T is observed for x = 0.2 while maintaining a coercivity of 9.3 A/m. This represents a 0.1 T increase over existing Co-free HiB-Nanoperm alloys with a B content of 13 at.{\%} and is directly comparable to conventional crystalline Fe-3 wt{\%}Si. Ultra-rapid annealing is shown to be a requirement for producing magnetically soft materials in this alloy system. The effect of Cu on ultra-rapidly annealed nanocrystalline (Fe0.8Co0.2)87−yB13Cuy where y = 0–1.5 is also investigated. It is found that Cu is effective at improving the magnetic softness of Co-containing HiB-Nanoperm, with y = 1 displaying a Hc of 7 A/m and a saturation magnetic polarization of 2.0 T.",
keywords = "Amorphous, Cobalt, Nanocrystalline, Rapid annealing, Saturation magnetization, Soft magnetic material",
author = "R. Parsons and Z. Li and K. Suzuki",
year = "2019",
month = "9",
day = "1",
doi = "10.1016/j.jmmm.2019.04.052",
language = "English",
volume = "485",
pages = "180--186",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",

}

Nanocrystalline soft magnetic materials with a saturation magnetization greater than 2 T. / Parsons, R.; Li, Z.; Suzuki, K.

In: Journal of Magnetism and Magnetic Materials, Vol. 485, 01.09.2019, p. 180-186.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Nanocrystalline soft magnetic materials with a saturation magnetization greater than 2 T

AU - Parsons, R.

AU - Li, Z.

AU - Suzuki, K.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - The effect of Co on the magnetic properties of ultra-rapidly annealed (heating rate > 104K/s, annealing time < 1 s) nanocrystalline (Fe1−xCox)87B13 with x = 0–0.5 has been investigated. A saturation magnetic polarization of 2.02 T is observed for x = 0.2 while maintaining a coercivity of 9.3 A/m. This represents a 0.1 T increase over existing Co-free HiB-Nanoperm alloys with a B content of 13 at.% and is directly comparable to conventional crystalline Fe-3 wt%Si. Ultra-rapid annealing is shown to be a requirement for producing magnetically soft materials in this alloy system. The effect of Cu on ultra-rapidly annealed nanocrystalline (Fe0.8Co0.2)87−yB13Cuy where y = 0–1.5 is also investigated. It is found that Cu is effective at improving the magnetic softness of Co-containing HiB-Nanoperm, with y = 1 displaying a Hc of 7 A/m and a saturation magnetic polarization of 2.0 T.

AB - The effect of Co on the magnetic properties of ultra-rapidly annealed (heating rate > 104K/s, annealing time < 1 s) nanocrystalline (Fe1−xCox)87B13 with x = 0–0.5 has been investigated. A saturation magnetic polarization of 2.02 T is observed for x = 0.2 while maintaining a coercivity of 9.3 A/m. This represents a 0.1 T increase over existing Co-free HiB-Nanoperm alloys with a B content of 13 at.% and is directly comparable to conventional crystalline Fe-3 wt%Si. Ultra-rapid annealing is shown to be a requirement for producing magnetically soft materials in this alloy system. The effect of Cu on ultra-rapidly annealed nanocrystalline (Fe0.8Co0.2)87−yB13Cuy where y = 0–1.5 is also investigated. It is found that Cu is effective at improving the magnetic softness of Co-containing HiB-Nanoperm, with y = 1 displaying a Hc of 7 A/m and a saturation magnetic polarization of 2.0 T.

KW - Amorphous

KW - Cobalt

KW - Nanocrystalline

KW - Rapid annealing

KW - Saturation magnetization

KW - Soft magnetic material

UR - http://www.scopus.com/inward/record.url?scp=85064881481&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2019.04.052

DO - 10.1016/j.jmmm.2019.04.052

M3 - Article

VL - 485

SP - 180

EP - 186

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -