Annealing effect on the magnetic properties of cobalt-based amorphous alloys

Sumin Kim; Yong Jin Kim; Young Keun Kim; Haein Choi-Yim

doi:10.1016/j.cap.2017.01.025

Annealing effect on the magnetic properties of cobalt-based amorphous alloys

Sumin Kim, Yong Jin Kim, Young Keun Kim, Haein Choi-Yim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The annealing effects on the magnetic properties of the Co₇₂B_19.2Si_4.8Cr₄ and Co_64.8Fe_7.2B_19.2Si_4.8Cr₄ alloy systems are reported. Ribbon samples with 2 mm width and 20–30 μm thickness for both compositions were synthesized by melt spinning. The as-spun samples were subjected to annealing at various temperatures below their glass transition temperatures for 15 min in a vacuum. The annealed systems tended to have improved soft magnetic characteristics, including higher saturation magnetization and lower coercivity values, while maintaining their amorphous phase. A high saturation magnetization of 87.8 emu g⁻¹ and low coercivity of 0.084 Oe were obtained for Co_64.8Fe_7.2B_19.2Si_4.8Cr₄ after annealing at 400 °C, which is a significant improvement in comparison to the magnetic properties of the as-spun ribbons.

Original language	English
Pages (from-to)	548-551
Number of pages	4
Journal	Current Applied Physics
Volume	17
Issue number	4
DOIs	https://doi.org/10.1016/j.cap.2017.01.025
Publication status	Published - 2017 Apr 1

Keywords

Amorphous
Annealing
Co-based
Ferromagnetic
Soft magnetic

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

Access to Document

10.1016/j.cap.2017.01.025

Cite this

@article{65b24231cdf04268a84bda971750f469,

title = "Annealing effect on the magnetic properties of cobalt-based amorphous alloys",

abstract = "The annealing effects on the magnetic properties of the Co72B19.2Si4.8Cr4 and Co64.8Fe7.2B19.2Si4.8Cr4 alloy systems are reported. Ribbon samples with 2 mm width and 20–30 μm thickness for both compositions were synthesized by melt spinning. The as-spun samples were subjected to annealing at various temperatures below their glass transition temperatures for 15 min in a vacuum. The annealed systems tended to have improved soft magnetic characteristics, including higher saturation magnetization and lower coercivity values, while maintaining their amorphous phase. A high saturation magnetization of 87.8 emu g−1 and low coercivity of 0.084 Oe were obtained for Co64.8Fe7.2B19.2Si4.8Cr4 after annealing at 400 °C, which is a significant improvement in comparison to the magnetic properties of the as-spun ribbons.",

keywords = "Amorphous, Annealing, Co-based, Ferromagnetic, Soft magnetic",

author = "Sumin Kim and Kim, {Yong Jin} and Kim, {Young Keun} and Haein Choi-Yim",

note = "Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (MSIP) (2015005294) and the Commercializations Promotion Agency for R&D Outcomes (COMPA) funded by the MSIP (2016K000213).",

year = "2017",

month = apr,

day = "1",

doi = "10.1016/j.cap.2017.01.025",

language = "English",

volume = "17",

pages = "548--551",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Annealing effect on the magnetic properties of cobalt-based amorphous alloys

AU - Kim, Sumin

AU - Kim, Yong Jin

AU - Kim, Young Keun

AU - Choi-Yim, Haein

N1 - Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (MSIP) (2015005294) and the Commercializations Promotion Agency for R&D Outcomes (COMPA) funded by the MSIP (2016K000213).

PY - 2017/4/1

Y1 - 2017/4/1

N2 - The annealing effects on the magnetic properties of the Co72B19.2Si4.8Cr4 and Co64.8Fe7.2B19.2Si4.8Cr4 alloy systems are reported. Ribbon samples with 2 mm width and 20–30 μm thickness for both compositions were synthesized by melt spinning. The as-spun samples were subjected to annealing at various temperatures below their glass transition temperatures for 15 min in a vacuum. The annealed systems tended to have improved soft magnetic characteristics, including higher saturation magnetization and lower coercivity values, while maintaining their amorphous phase. A high saturation magnetization of 87.8 emu g−1 and low coercivity of 0.084 Oe were obtained for Co64.8Fe7.2B19.2Si4.8Cr4 after annealing at 400 °C, which is a significant improvement in comparison to the magnetic properties of the as-spun ribbons.

AB - The annealing effects on the magnetic properties of the Co72B19.2Si4.8Cr4 and Co64.8Fe7.2B19.2Si4.8Cr4 alloy systems are reported. Ribbon samples with 2 mm width and 20–30 μm thickness for both compositions were synthesized by melt spinning. The as-spun samples were subjected to annealing at various temperatures below their glass transition temperatures for 15 min in a vacuum. The annealed systems tended to have improved soft magnetic characteristics, including higher saturation magnetization and lower coercivity values, while maintaining their amorphous phase. A high saturation magnetization of 87.8 emu g−1 and low coercivity of 0.084 Oe were obtained for Co64.8Fe7.2B19.2Si4.8Cr4 after annealing at 400 °C, which is a significant improvement in comparison to the magnetic properties of the as-spun ribbons.

KW - Amorphous

KW - Annealing

KW - Co-based

KW - Ferromagnetic

KW - Soft magnetic

UR - http://www.scopus.com/inward/record.url?scp=85012202875&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85012202875&partnerID=8YFLogxK

U2 - 10.1016/j.cap.2017.01.025

DO - 10.1016/j.cap.2017.01.025

M3 - Article

AN - SCOPUS:85012202875

SN - 1567-1739

VL - 17

SP - 548

EP - 551

JO - Current Applied Physics

JF - Current Applied Physics

IS - 4

ER -

Annealing effect on the magnetic properties of cobalt-based amorphous alloys

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this