Effect of Cu additions on the magnetic properties and microstructure of FeCoNbB nanocrystalline alloy

F. L. Kong; H. Men; M. X. Zhang; T. C. Liu; G. Q. Xie; B. L. Shen

doi:10.1007/s00339-012-6876-8

Effect of Cu additions on the magnetic properties and microstructure of FeCoNbB nanocrystalline alloy

F. L. Kong, H. Men, M. X. Zhang, T. C. Liu, G. Q. Xie, B. L. Shen

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

6 Citations (Scopus)

Abstract

The influence of Cu content and the annealing conditions in the (Fe _0.5Co _0.5) _85-xNb ₇B ₈Cu _x (x = 0.5, 1.0, 1.5) soft magnetic alloys on the magnetic properties and microstructure were investigated. The additions of Cu lower the primary and secondary crystallization temperatures and the α → γ phase transformation temperature of the Fe- CoNbB alloys. The (Fe _0.5Co _0.5) ₈₄Nb ₇B ₈Cu1 alloy annealed at 873 K for 3.6 ks, in which α-(Fe, Co) nanocrystalline phase with diameter of 5 nm precipitated from the amorphous matrix, shows the best soft magnetic properties. The resulting (Fe _0.5Co _0.5) ₈₄Nb ₇B ₈Cu ₁ nanocrystalline alloy exhibits a high saturation flux density of 1.88 T, low coercivity of 42 A/m, very high Curie temperature of 1240 K, as well as low core loss of 770 W/kg at 10 kHz under maximum magnetization of 1 T.

Original language	English
Pages (from-to)	211-215
Number of pages	5
Journal	Applied Physics A: Materials Science and Processing
Volume	108
Issue number	1
DOIs	https://doi.org/10.1007/s00339-012-6876-8
Publication status	Published - 2012 Jul

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

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@article{11809be2a8c74bb9beafcf12840e65df,

title = "Effect of Cu additions on the magnetic properties and microstructure of FeCoNbB nanocrystalline alloy",

abstract = "The influence of Cu content and the annealing conditions in the (Fe 0.5Co 0.5) 85-xNb 7B 8Cu x (x = 0.5, 1.0, 1.5) soft magnetic alloys on the magnetic properties and microstructure were investigated. The additions of Cu lower the primary and secondary crystallization temperatures and the α → γ phase transformation temperature of the Fe- CoNbB alloys. The (Fe 0.5Co 0.5) 84Nb 7B 8Cu1 alloy annealed at 873 K for 3.6 ks, in which α-(Fe, Co) nanocrystalline phase with diameter of 5 nm precipitated from the amorphous matrix, shows the best soft magnetic properties. The resulting (Fe 0.5Co 0.5) 84Nb 7B 8Cu 1 nanocrystalline alloy exhibits a high saturation flux density of 1.88 T, low coercivity of 42 A/m, very high Curie temperature of 1240 K, as well as low core loss of 770 W/kg at 10 kHz under maximum magnetization of 1 T.",

author = "Kong, {F. L.} and H. Men and Zhang, {M. X.} and Liu, {T. C.} and Xie, {G. Q.} and Shen, {B. L.}",

year = "2012",

month = jul,

doi = "10.1007/s00339-012-6876-8",

language = "English",

volume = "108",

pages = "211--215",

journal = "Applied Physics A: Materials Science and Processing",

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T1 - Effect of Cu additions on the magnetic properties and microstructure of FeCoNbB nanocrystalline alloy

AU - Kong, F. L.

AU - Men, H.

AU - Zhang, M. X.

AU - Liu, T. C.

AU - Xie, G. Q.

AU - Shen, B. L.

PY - 2012/7

Y1 - 2012/7

N2 - The influence of Cu content and the annealing conditions in the (Fe 0.5Co 0.5) 85-xNb 7B 8Cu x (x = 0.5, 1.0, 1.5) soft magnetic alloys on the magnetic properties and microstructure were investigated. The additions of Cu lower the primary and secondary crystallization temperatures and the α → γ phase transformation temperature of the Fe- CoNbB alloys. The (Fe 0.5Co 0.5) 84Nb 7B 8Cu1 alloy annealed at 873 K for 3.6 ks, in which α-(Fe, Co) nanocrystalline phase with diameter of 5 nm precipitated from the amorphous matrix, shows the best soft magnetic properties. The resulting (Fe 0.5Co 0.5) 84Nb 7B 8Cu 1 nanocrystalline alloy exhibits a high saturation flux density of 1.88 T, low coercivity of 42 A/m, very high Curie temperature of 1240 K, as well as low core loss of 770 W/kg at 10 kHz under maximum magnetization of 1 T.

AB - The influence of Cu content and the annealing conditions in the (Fe 0.5Co 0.5) 85-xNb 7B 8Cu x (x = 0.5, 1.0, 1.5) soft magnetic alloys on the magnetic properties and microstructure were investigated. The additions of Cu lower the primary and secondary crystallization temperatures and the α → γ phase transformation temperature of the Fe- CoNbB alloys. The (Fe 0.5Co 0.5) 84Nb 7B 8Cu1 alloy annealed at 873 K for 3.6 ks, in which α-(Fe, Co) nanocrystalline phase with diameter of 5 nm precipitated from the amorphous matrix, shows the best soft magnetic properties. The resulting (Fe 0.5Co 0.5) 84Nb 7B 8Cu 1 nanocrystalline alloy exhibits a high saturation flux density of 1.88 T, low coercivity of 42 A/m, very high Curie temperature of 1240 K, as well as low core loss of 770 W/kg at 10 kHz under maximum magnetization of 1 T.

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