Micromagnetic study for magnetic properties of exchange coupled nanocomposite magnetic systems with Nd2Fe14B grains embedded in α-Fe matrix

Hyok Su Ryo; Lian Xi Hu; Yu Lin Yang

doi:10.1016/j.jmmm.2016.11.059

Micromagnetic study for magnetic properties of exchange coupled nanocomposite magnetic systems with Nd₂Fe₁₄B grains embedded in α-Fe matrix

Hyok Su Ryo^*
, Lian Xi Hu
, Yu Lin Yang

^*Corresponding author for this work

Harbin Institute of Technology
Kim Il Sung University
School of Chemistry and Chemical Engineering, Harbin Institute of Technology

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

7 Scopus citations

Abstract

Developing high efficiency rare earth alloy magnets at low cost is an economically hopeful way to expand their application area. In this study, magnetic properties of nanocomposite isotropic exchange coupled systems with the structure of Nd₂Fe₁₄B crystalline grains embedded in α-Fe matrices have been simulated by micromagnetic finite element method (FEM). The results have been analyzed by means of the effect of volume fraction of nanosized exchange coupling area between the magnetically hard Nd₂Fe₁₄B and soft α-Fe phase on magnetic properties of the exchange coupled Nd₂Fe₁₄B/α-Fe magnetic systems. The results show that the magnetic systems with the structure of Nd₂Fe₁₄B grains embedded in α-Fe matrices can have comparatively advanced magnetic properties with small amount of Nd₂Fe₁₄B components, because of efficient inter-phase exchange coupling between magnetically hard Nd₂Fe₁₄B grains and soft α-Fe matrix.

Original language	English
Pages (from-to)	46-52
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	426
DOIs	https://doi.org/10.1016/j.jmmm.2016.11.059
State	Published - 15 Mar 2017
Externally published	Yes

Keywords

Exchange coupling
Micromagnetic simulation
Microstructure
Nanocomposite magnet
NdFeB/α-Fe magnets
Permanent magnet

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10.1016/j.jmmm.2016.11.059

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@article{557ba740446d472da5336d75f7a661c1,

title = "Micromagnetic study for magnetic properties of exchange coupled nanocomposite magnetic systems with Nd2Fe14B grains embedded in α-Fe matrix",

abstract = "Developing high efficiency rare earth alloy magnets at low cost is an economically hopeful way to expand their application area. In this study, magnetic properties of nanocomposite isotropic exchange coupled systems with the structure of Nd2Fe14B crystalline grains embedded in α-Fe matrices have been simulated by micromagnetic finite element method (FEM). The results have been analyzed by means of the effect of volume fraction of nanosized exchange coupling area between the magnetically hard Nd2Fe14B and soft α-Fe phase on magnetic properties of the exchange coupled Nd2Fe14B/α-Fe magnetic systems. The results show that the magnetic systems with the structure of Nd2Fe14B grains embedded in α-Fe matrices can have comparatively advanced magnetic properties with small amount of Nd2Fe14B components, because of efficient inter-phase exchange coupling between magnetically hard Nd2Fe14B grains and soft α-Fe matrix.",

keywords = "Exchange coupling, Micromagnetic simulation, Microstructure, Nanocomposite magnet, NdFeB/α-Fe magnets, Permanent magnet",

author = "Ryo, \{Hyok Su\} and Hu, \{Lian Xi\} and Yang, \{Yu Lin\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = mar,

day = "15",

doi = "10.1016/j.jmmm.2016.11.059",

language = "英语",

volume = "426",

pages = "46--52",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Micromagnetic study for magnetic properties of exchange coupled nanocomposite magnetic systems with Nd2Fe14B grains embedded in α-Fe matrix

AU - Ryo, Hyok Su

AU - Hu, Lian Xi

AU - Yang, Yu Lin

PY - 2017/3/15

Y1 - 2017/3/15

N2 - Developing high efficiency rare earth alloy magnets at low cost is an economically hopeful way to expand their application area. In this study, magnetic properties of nanocomposite isotropic exchange coupled systems with the structure of Nd2Fe14B crystalline grains embedded in α-Fe matrices have been simulated by micromagnetic finite element method (FEM). The results have been analyzed by means of the effect of volume fraction of nanosized exchange coupling area between the magnetically hard Nd2Fe14B and soft α-Fe phase on magnetic properties of the exchange coupled Nd2Fe14B/α-Fe magnetic systems. The results show that the magnetic systems with the structure of Nd2Fe14B grains embedded in α-Fe matrices can have comparatively advanced magnetic properties with small amount of Nd2Fe14B components, because of efficient inter-phase exchange coupling between magnetically hard Nd2Fe14B grains and soft α-Fe matrix.

AB - Developing high efficiency rare earth alloy magnets at low cost is an economically hopeful way to expand their application area. In this study, magnetic properties of nanocomposite isotropic exchange coupled systems with the structure of Nd2Fe14B crystalline grains embedded in α-Fe matrices have been simulated by micromagnetic finite element method (FEM). The results have been analyzed by means of the effect of volume fraction of nanosized exchange coupling area between the magnetically hard Nd2Fe14B and soft α-Fe phase on magnetic properties of the exchange coupled Nd2Fe14B/α-Fe magnetic systems. The results show that the magnetic systems with the structure of Nd2Fe14B grains embedded in α-Fe matrices can have comparatively advanced magnetic properties with small amount of Nd2Fe14B components, because of efficient inter-phase exchange coupling between magnetically hard Nd2Fe14B grains and soft α-Fe matrix.

KW - Exchange coupling

KW - Micromagnetic simulation

KW - Microstructure

KW - Nanocomposite magnet

KW - NdFeB/α-Fe magnets

KW - Permanent magnet

UR - https://www.scopus.com/pages/publications/84995952462

U2 - 10.1016/j.jmmm.2016.11.059

DO - 10.1016/j.jmmm.2016.11.059

M3 - 文章

AN - SCOPUS:84995952462

SN - 0304-8853

VL - 426

SP - 46

EP - 52

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Micromagnetic study for magnetic properties of exchange coupled nanocomposite magnetic systems with Nd₂Fe₁₄B grains embedded in α-Fe matrix

Abstract

Keywords

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