Production of a magnetic material with the ability to change from very soft to semi-hard magnetic

Yan Zhang; Parmanand Sharma; Noriharu Yodoshi; Akihiro Makino

doi:10.1063/1.4916812

Production of a magnetic material with the ability to change from very soft to semi-hard magnetic

Yan Zhang, Parmanand Sharma, Noriharu Yodoshi, Akihiro Makino

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

Development and magnetic properties of an alloy that can change from very soft to semi-hard magnetic are reported. We found that as quenched ribbons of Fe_75.3Pt₈B₁₂P₄Cu_0.7 alloy are amorphous by X-ray. Heat treatment in the temperature range of 400-450°C causes formation of many α-Fe grains in the amorphous matrix. Hard magnetic L1₀ FePt grains appear at ∼520°C. This alloy shows a high saturation magnetic flux density [B_s (≈ M_s)>1.55T] along with the ability to vary coercivity (H_c) from ∼25A/m to 11000A/m. The H_c can be increased further to more than 21000A/m, but at the expense of a significant decrease in B_s. The ability to control magnetic properties lies in a precise control over the soft and hard magnetic phases, which are strongly exchange coupled.

本文言語	English
論文番号	17E507
ジャーナル	Journal of Applied Physics
巻	117
号	17
DOI	https://doi.org/10.1063/1.4916812
出版ステータス	Published - 2015 5月 7

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1063/1.4916812

他のファイルとリンク

引用スタイル

@article{3949e04d4c3e409b982dda22dca99423,

title = "Production of a magnetic material with the ability to change from very soft to semi-hard magnetic",

abstract = "Development and magnetic properties of an alloy that can change from very soft to semi-hard magnetic are reported. We found that as quenched ribbons of Fe75.3Pt8B12P4Cu0.7 alloy are amorphous by X-ray. Heat treatment in the temperature range of 400-450°C causes formation of many α-Fe grains in the amorphous matrix. Hard magnetic L10 FePt grains appear at ∼520°C. This alloy shows a high saturation magnetic flux density [Bs (≈ Ms)>1.55T] along with the ability to vary coercivity (Hc) from ∼25A/m to 11000A/m. The Hc can be increased further to more than 21000A/m, but at the expense of a significant decrease in Bs. The ability to control magnetic properties lies in a precise control over the soft and hard magnetic phases, which are strongly exchange coupled.",

author = "Yan Zhang and Parmanand Sharma and Noriharu Yodoshi and Akihiro Makino",

note = "Publisher Copyright: {\textcopyright} 2015 AIP Publishing LLC.",

year = "2015",

month = may,

day = "7",

doi = "10.1063/1.4916812",

language = "English",

volume = "117",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "17",

}

TY - JOUR

T1 - Production of a magnetic material with the ability to change from very soft to semi-hard magnetic

AU - Zhang, Yan

AU - Sharma, Parmanand

AU - Yodoshi, Noriharu

AU - Makino, Akihiro

PY - 2015/5/7

Y1 - 2015/5/7

N2 - Development and magnetic properties of an alloy that can change from very soft to semi-hard magnetic are reported. We found that as quenched ribbons of Fe75.3Pt8B12P4Cu0.7 alloy are amorphous by X-ray. Heat treatment in the temperature range of 400-450°C causes formation of many α-Fe grains in the amorphous matrix. Hard magnetic L10 FePt grains appear at ∼520°C. This alloy shows a high saturation magnetic flux density [Bs (≈ Ms)>1.55T] along with the ability to vary coercivity (Hc) from ∼25A/m to 11000A/m. The Hc can be increased further to more than 21000A/m, but at the expense of a significant decrease in Bs. The ability to control magnetic properties lies in a precise control over the soft and hard magnetic phases, which are strongly exchange coupled.

AB - Development and magnetic properties of an alloy that can change from very soft to semi-hard magnetic are reported. We found that as quenched ribbons of Fe75.3Pt8B12P4Cu0.7 alloy are amorphous by X-ray. Heat treatment in the temperature range of 400-450°C causes formation of many α-Fe grains in the amorphous matrix. Hard magnetic L10 FePt grains appear at ∼520°C. This alloy shows a high saturation magnetic flux density [Bs (≈ Ms)>1.55T] along with the ability to vary coercivity (Hc) from ∼25A/m to 11000A/m. The Hc can be increased further to more than 21000A/m, but at the expense of a significant decrease in Bs. The ability to control magnetic properties lies in a precise control over the soft and hard magnetic phases, which are strongly exchange coupled.

UR - http://www.scopus.com/inward/record.url?scp=84926669465&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84926669465&partnerID=8YFLogxK

U2 - 10.1063/1.4916812

DO - 10.1063/1.4916812

M3 - Article

AN - SCOPUS:84926669465

VL - 117

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 17

M1 - 17E507

ER -

Production of a magnetic material with the ability to change from very soft to semi-hard magnetic

抄録

ASJC Scopus subject areas

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル