Refinement of the microstructure and enhancement of the magnetic properties in alpha-Fe/(Nd,DY)(2)Fe14B annealing nanocomposite using the two-step technique

Wei Chen; X. Zhao; J.J. Hu; A.J. Li; Y. Tian; G.D. Tang; R.W. Gao; M.G. Zhu; X.M. Li; W. Li

doi:10.1016/j.jmmm.2006.02.104

Refinement of the microstructure and enhancement of the magnetic properties in alpha-Fe/(Nd,DY)(2)Fe14B annealing nanocomposite using the two-step technique

Wei Chen, X. Zhao, J.J. Hu, A.J. Li, Y. Tian, G.D. Tang, R.W. Gao, M.G. Zhu, X.M. Li, W. Li

Department of Physics

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The Nd8-xDyxFe87.5B4.5 (x = 0- 1.0) nanocomposites have been prepared by melt spinning and subsequent two-step heat treatment technique. The crystallization behaviors, microstructures and magnetic properties of the samples have been investigated. The experimental results show that the crystallization temperature of alpha-Fe soft phase has no obvious change through Dy addition while the crystallization temperature of 2:14:1 hard phase increases remarkably with increasing Dy content. By adopting a two-step heat treatment technique, a finer and more uniform microstructure can be developed. A dramatic enhancement of remanence J(r) from 0.84 to 1.1 T, coercivity H-cj from 417 to 520 kA/m and energy product (BH)(m) from 76.8 to 110 kJ/m(3) have been obtained in Nd7Dy1Fe87.5B4.5 (30 vol%alpha-Fe) nanocomposite.

Original language	English
Journal	Journal of Magnetism and Magnetic Materials
Volume	306
Issue number	1
Pages (from-to)	51-54
ISSN	0304-8853
DOIs	https://doi.org/10.1016/j.jmmm.2006.02.104
Publication status	Published - 2006

Keywords

exchange interaction
grain refining
magnetic properties
nanocomposite
annealing

Access to Document

10.1016/j.jmmm.2006.02.104

OpenUrl availability

Full text

Cite this

Chen, W., Zhao, X., Hu, J. J., Li, A. J., Tian, Y., Tang, G. D., Gao, R. W., Zhu, M. G., Li, X. M., & Li, W. (2006). Refinement of the microstructure and enhancement of the magnetic properties in alpha-Fe/(Nd,DY)(2)Fe14B annealing nanocomposite using the two-step technique. Journal of Magnetism and Magnetic Materials, 306(1), 51-54. https://doi.org/10.1016/j.jmmm.2006.02.104

@article{e4cd14c8b6d644c58a6458e03cd89705,

title = "Refinement of the microstructure and enhancement of the magnetic properties in alpha-Fe/(Nd,DY)(2)Fe14B annealing nanocomposite using the two-step technique",

abstract = "The Nd8-xDyxFe87.5B4.5 (x = 0- 1.0) nanocomposites have been prepared by melt spinning and subsequent two-step heat treatment technique. The crystallization behaviors, microstructures and magnetic properties of the samples have been investigated. The experimental results show that the crystallization temperature of alpha-Fe soft phase has no obvious change through Dy addition while the crystallization temperature of 2:14:1 hard phase increases remarkably with increasing Dy content. By adopting a two-step heat treatment technique, a finer and more uniform microstructure can be developed. A dramatic enhancement of remanence J(r) from 0.84 to 1.1 T, coercivity H-cj from 417 to 520 kA/m and energy product (BH)(m) from 76.8 to 110 kJ/m(3) have been obtained in Nd7Dy1Fe87.5B4.5 (30 vol%alpha-Fe) nanocomposite.",

keywords = "exchange interaction, grain refining, magnetic properties, nanocomposite, annealing",

author = "Wei Chen and X. Zhao and J.J. Hu and A.J. Li and Y. Tian and G.D. Tang and R.W. Gao and M.G. Zhu and X.M. Li and W. Li",

year = "2006",

doi = "10.1016/j.jmmm.2006.02.104",

language = "English",

volume = "306",

pages = "51--54",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - Refinement of the microstructure and enhancement of the magnetic properties in alpha-Fe/(Nd,DY)(2)Fe14B annealing nanocomposite using the two-step technique

AU - Chen, Wei

AU - Zhao, X.

AU - Hu, J.J.

AU - Li, A.J.

AU - Tian, Y.

AU - Tang, G.D.

AU - Gao, R.W.

AU - Zhu, M.G.

AU - Li, X.M.

AU - Li, W.

PY - 2006

Y1 - 2006

N2 - The Nd8-xDyxFe87.5B4.5 (x = 0- 1.0) nanocomposites have been prepared by melt spinning and subsequent two-step heat treatment technique. The crystallization behaviors, microstructures and magnetic properties of the samples have been investigated. The experimental results show that the crystallization temperature of alpha-Fe soft phase has no obvious change through Dy addition while the crystallization temperature of 2:14:1 hard phase increases remarkably with increasing Dy content. By adopting a two-step heat treatment technique, a finer and more uniform microstructure can be developed. A dramatic enhancement of remanence J(r) from 0.84 to 1.1 T, coercivity H-cj from 417 to 520 kA/m and energy product (BH)(m) from 76.8 to 110 kJ/m(3) have been obtained in Nd7Dy1Fe87.5B4.5 (30 vol%alpha-Fe) nanocomposite.

AB - The Nd8-xDyxFe87.5B4.5 (x = 0- 1.0) nanocomposites have been prepared by melt spinning and subsequent two-step heat treatment technique. The crystallization behaviors, microstructures and magnetic properties of the samples have been investigated. The experimental results show that the crystallization temperature of alpha-Fe soft phase has no obvious change through Dy addition while the crystallization temperature of 2:14:1 hard phase increases remarkably with increasing Dy content. By adopting a two-step heat treatment technique, a finer and more uniform microstructure can be developed. A dramatic enhancement of remanence J(r) from 0.84 to 1.1 T, coercivity H-cj from 417 to 520 kA/m and energy product (BH)(m) from 76.8 to 110 kJ/m(3) have been obtained in Nd7Dy1Fe87.5B4.5 (30 vol%alpha-Fe) nanocomposite.

KW - exchange interaction

KW - grain refining

KW - magnetic properties

KW - nanocomposite

KW - annealing

U2 - 10.1016/j.jmmm.2006.02.104

DO - 10.1016/j.jmmm.2006.02.104

M3 - Journal article

SN - 0304-8853

VL - 306

SP - 51

EP - 54

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1

ER -

Refinement of the microstructure and enhancement of the magnetic properties in alpha-Fe/(Nd,DY)(2)Fe14B annealing nanocomposite using the two-step technique

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this