High magnetostriction at low fields of epoxy/Tb1-xPrx(Fe0.4Co0.6)1.9composites

J. J. Liu; D. K. Xiong; W. J. Ren; Z. D. Zhang; Siu Wing Or

doi:10.1016/j.jallcom.2006.03.068

High magnetostriction at low fields of epoxy/Tb_1-xPr_x(Fe_0.4Co_0.6)_1.9composites

J. J. Liu, D. K. Xiong, W. J. Ren, Z. D. Zhang, Siu Wing Or

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

High Pr-content Tb1-xPrx(Fe0.4Co0.6)1.9magnetostrictive alloys (0.7 ≤ x ≤ 1.0) with a single cubic Laves phase have been synthesized by melt-spinning and subsequent annealing processes. The lattice parameter and the magnetization of the Tb1-xPrx(Fe0.4Co0.6)1.9Laves phase increase while the Curie temperature, the magnetocrystalline anisotropy, and the spontaneous magnetostriction coefficient λ1 1 1decrease with increasing Pr-content. The characteristic of the magnetostriction λa= λ{norm of matrix}- λ⊥of the epoxy/Tb1-xPrx(Fe0.4Co0.6)1.9composites can be well understood by the spontaneous magnetostriction λ1 1 1and the magnetocrystalline anisotropy of the Tb1-xPrx(Fe0.4Co0.6)1.9alloys. The epoxy/Pr(Fe0.4Co0.6)1.9composite free of high-cost Tb has a high magnetostriction of about 500 ppm at 6 kOe, suggesting that it would be a promising magnetostrictive composite material for low field application.

Original language	English
Pages (from-to)	271-274
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	427
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2006.03.068
Publication status	Published - 16 Jan 2007

Keywords

Magnetic properties
Magnetostriction
Magnetostrictive composite material
Melt-spinning
MgCu -type structure 2

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

More information

10.1016/j.jallcom.2006.03.068

Cite this

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title = "High magnetostriction at low fields of epoxy/Tb1-xPrx(Fe0.4Co0.6)1.9composites",

abstract = "High Pr-content Tb1-xPrx(Fe0.4Co0.6)1.9magnetostrictive alloys (0.7 ≤ x ≤ 1.0) with a single cubic Laves phase have been synthesized by melt-spinning and subsequent annealing processes. The lattice parameter and the magnetization of the Tb1-xPrx(Fe0.4Co0.6)1.9Laves phase increase while the Curie temperature, the magnetocrystalline anisotropy, and the spontaneous magnetostriction coefficient λ1 1 1decrease with increasing Pr-content. The characteristic of the magnetostriction λa= λ{norm of matrix}- λ⊥of the epoxy/Tb1-xPrx(Fe0.4Co0.6)1.9composites can be well understood by the spontaneous magnetostriction λ1 1 1and the magnetocrystalline anisotropy of the Tb1-xPrx(Fe0.4Co0.6)1.9alloys. The epoxy/Pr(Fe0.4Co0.6)1.9composite free of high-cost Tb has a high magnetostriction of about 500 ppm at 6 kOe, suggesting that it would be a promising magnetostrictive composite material for low field application.",

keywords = "Magnetic properties, Magnetostriction, Magnetostrictive composite material, Melt-spinning, MgCu -type structure 2",

author = "Liu, {J. J.} and Xiong, {D. K.} and Ren, {W. J.} and Zhang, {Z. D.} and Or, {Siu Wing}",

year = "2007",

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doi = "10.1016/j.jallcom.2006.03.068",

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AU - Liu, J. J.

AU - Xiong, D. K.

AU - Ren, W. J.

AU - Zhang, Z. D.

AU - Or, Siu Wing

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N2 - High Pr-content Tb1-xPrx(Fe0.4Co0.6)1.9magnetostrictive alloys (0.7 ≤ x ≤ 1.0) with a single cubic Laves phase have been synthesized by melt-spinning and subsequent annealing processes. The lattice parameter and the magnetization of the Tb1-xPrx(Fe0.4Co0.6)1.9Laves phase increase while the Curie temperature, the magnetocrystalline anisotropy, and the spontaneous magnetostriction coefficient λ1 1 1decrease with increasing Pr-content. The characteristic of the magnetostriction λa= λ{norm of matrix}- λ⊥of the epoxy/Tb1-xPrx(Fe0.4Co0.6)1.9composites can be well understood by the spontaneous magnetostriction λ1 1 1and the magnetocrystalline anisotropy of the Tb1-xPrx(Fe0.4Co0.6)1.9alloys. The epoxy/Pr(Fe0.4Co0.6)1.9composite free of high-cost Tb has a high magnetostriction of about 500 ppm at 6 kOe, suggesting that it would be a promising magnetostrictive composite material for low field application.

AB - High Pr-content Tb1-xPrx(Fe0.4Co0.6)1.9magnetostrictive alloys (0.7 ≤ x ≤ 1.0) with a single cubic Laves phase have been synthesized by melt-spinning and subsequent annealing processes. The lattice parameter and the magnetization of the Tb1-xPrx(Fe0.4Co0.6)1.9Laves phase increase while the Curie temperature, the magnetocrystalline anisotropy, and the spontaneous magnetostriction coefficient λ1 1 1decrease with increasing Pr-content. The characteristic of the magnetostriction λa= λ{norm of matrix}- λ⊥of the epoxy/Tb1-xPrx(Fe0.4Co0.6)1.9composites can be well understood by the spontaneous magnetostriction λ1 1 1and the magnetocrystalline anisotropy of the Tb1-xPrx(Fe0.4Co0.6)1.9alloys. The epoxy/Pr(Fe0.4Co0.6)1.9composite free of high-cost Tb has a high magnetostriction of about 500 ppm at 6 kOe, suggesting that it would be a promising magnetostrictive composite material for low field application.

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KW - MgCu -type structure 2

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