Microstructure and soft magnetic properties of nanocrystalline Fe-Si powders

J. Ding; Y. Li; L. F. Chen; C. R. Deng; Y. Shi; Y. S. Chow; T. B. Gang

doi:10.1016/S0925-8388(00)01234-2

Microstructure and soft magnetic properties of nanocrystalline Fe-Si powders

J. Ding^*
, Y. Li
, L. F. Chen
, C. R. Deng
, Y. Shi
, Y. S. Chow
, T. B. Gang

^*Corresponding author for this work

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

117 Scopus citations

Abstract

In this work, fine Fe-Si powders with a nanocrystalline structure were prepared by mechanical alloying (high-energy ball milling) and subsequent heat treatment (in order to optimize their magnetic properties). Good soft magnetic properties were obtained in mechanically alloyed Fe-Si powders. The Fe₇₅Si₂₅ powder annealed at 450 °C possessed a magnetization of 149 Am²/kg and a coercivity of 0.2 kA/m. The coercivity model for soft magnetic nanocrystalline materials could be well applied to the Fe-Si powders in this work. The mechanically alloyed Fe-Si possessed significantly higher magnetic permeability than that of commercially available Fe-Si powder. The permeability of the mechanically alloyed Fe₇₅Si₂₅ powder was comparable with that of mechanically alloyed pure Fe powder. Considering of lower density and better chemical stability of Fe-Si, the mechanically alloyed Fe-Si may be interesting for soft magnetic application including magnetic shielding and electromagnetic noise suppression.

Original language	English
Pages (from-to)	262-267
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	314
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(00)01234-2
State	Published - 16 Jan 2001
Externally published	Yes

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title = "Microstructure and soft magnetic properties of nanocrystalline Fe-Si powders",

abstract = "In this work, fine Fe-Si powders with a nanocrystalline structure were prepared by mechanical alloying (high-energy ball milling) and subsequent heat treatment (in order to optimize their magnetic properties). Good soft magnetic properties were obtained in mechanically alloyed Fe-Si powders. The Fe75Si25 powder annealed at 450 °C possessed a magnetization of 149 Am2/kg and a coercivity of 0.2 kA/m. The coercivity model for soft magnetic nanocrystalline materials could be well applied to the Fe-Si powders in this work. The mechanically alloyed Fe-Si possessed significantly higher magnetic permeability than that of commercially available Fe-Si powder. The permeability of the mechanically alloyed Fe75Si25 powder was comparable with that of mechanically alloyed pure Fe powder. Considering of lower density and better chemical stability of Fe-Si, the mechanically alloyed Fe-Si may be interesting for soft magnetic application including magnetic shielding and electromagnetic noise suppression.",

author = "J. Ding and Y. Li and Chen, \{L. F.\} and Deng, \{C. R.\} and Y. Shi and Chow, \{Y. S.\} and Gang, \{T. B.\}",

year = "2001",

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doi = "10.1016/S0925-8388(00)01234-2",

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TY - JOUR

T1 - Microstructure and soft magnetic properties of nanocrystalline Fe-Si powders

AU - Ding, J.

AU - Li, Y.

AU - Chen, L. F.

AU - Deng, C. R.

AU - Shi, Y.

AU - Chow, Y. S.

AU - Gang, T. B.

PY - 2001/1/16

Y1 - 2001/1/16

N2 - In this work, fine Fe-Si powders with a nanocrystalline structure were prepared by mechanical alloying (high-energy ball milling) and subsequent heat treatment (in order to optimize their magnetic properties). Good soft magnetic properties were obtained in mechanically alloyed Fe-Si powders. The Fe75Si25 powder annealed at 450 °C possessed a magnetization of 149 Am2/kg and a coercivity of 0.2 kA/m. The coercivity model for soft magnetic nanocrystalline materials could be well applied to the Fe-Si powders in this work. The mechanically alloyed Fe-Si possessed significantly higher magnetic permeability than that of commercially available Fe-Si powder. The permeability of the mechanically alloyed Fe75Si25 powder was comparable with that of mechanically alloyed pure Fe powder. Considering of lower density and better chemical stability of Fe-Si, the mechanically alloyed Fe-Si may be interesting for soft magnetic application including magnetic shielding and electromagnetic noise suppression.

AB - In this work, fine Fe-Si powders with a nanocrystalline structure were prepared by mechanical alloying (high-energy ball milling) and subsequent heat treatment (in order to optimize their magnetic properties). Good soft magnetic properties were obtained in mechanically alloyed Fe-Si powders. The Fe75Si25 powder annealed at 450 °C possessed a magnetization of 149 Am2/kg and a coercivity of 0.2 kA/m. The coercivity model for soft magnetic nanocrystalline materials could be well applied to the Fe-Si powders in this work. The mechanically alloyed Fe-Si possessed significantly higher magnetic permeability than that of commercially available Fe-Si powder. The permeability of the mechanically alloyed Fe75Si25 powder was comparable with that of mechanically alloyed pure Fe powder. Considering of lower density and better chemical stability of Fe-Si, the mechanically alloyed Fe-Si may be interesting for soft magnetic application including magnetic shielding and electromagnetic noise suppression.

UR - https://www.scopus.com/pages/publications/0035127952

U2 - 10.1016/S0925-8388(00)01234-2

DO - 10.1016/S0925-8388(00)01234-2

M3 - 文章

AN - SCOPUS:0035127952

SN - 0925-8388

VL - 314

SP - 262

EP - 267

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Microstructure and soft magnetic properties of nanocrystalline Fe-Si powders

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