Anisotropic magnetostriction for Tb0.3Dy0.7Fe1.95 alloys under magnetomechanical loading

Yongmao Pei; Xue Feng; Xu Gao; Daining Fang

doi:10.1016/j.jallcom.2008.09.089

Anisotropic magnetostriction for Tb_0.3Dy_0.7Fe_1.95 alloys under magnetomechanical loading

Yongmao Pei, Xue Feng, Xu Gao, Daining Fang^*

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

The anisotropic magnetostriction has been studied in detail for the positive magnetostrictive material of Terfenol-D under two types of magnetomechanical loading. Under the application of the axial compressive stress σ_∥ and the axial magnetic field H_∥, the axial negative magnetostriction was observed when H_∥ increased to coercive field around, which was similar with the butterfly hysteresis in PZT. However, under the application of the axial compressive stress σ_∥ and the transversal magnetic field H_⊥, the "W" shape magnetostriction was observed firstly, which should be taken into consideration to avoid unexpected accidents for practical applications. The anisotropic phenomenon was explained by the domain rotation mechanism, where the demagnetization field effect was considered due to the shape anisotropy of the materials.

Original language	English
Pages (from-to)	556-559
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	476
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.09.089
Publication status	Published - 12 May 2009
Externally published	Yes

Keywords

Anisotropy
Domain rotation
Magnetomechanical loading
Negative magnetostriction
Terfenol-D

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10.1016/j.jallcom.2008.09.089

Cite this

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title = "Anisotropic magnetostriction for Tb0.3Dy0.7Fe1.95 alloys under magnetomechanical loading",

abstract = "The anisotropic magnetostriction has been studied in detail for the positive magnetostrictive material of Terfenol-D under two types of magnetomechanical loading. Under the application of the axial compressive stress σ∥ and the axial magnetic field H∥, the axial negative magnetostriction was observed when H∥ increased to coercive field around, which was similar with the butterfly hysteresis in PZT. However, under the application of the axial compressive stress σ∥ and the transversal magnetic field H⊥, the {"}W{"} shape magnetostriction was observed firstly, which should be taken into consideration to avoid unexpected accidents for practical applications. The anisotropic phenomenon was explained by the domain rotation mechanism, where the demagnetization field effect was considered due to the shape anisotropy of the materials.",

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AU - Pei, Yongmao

AU - Feng, Xue

AU - Gao, Xu

AU - Fang, Daining

PY - 2009/5/12

Y1 - 2009/5/12

N2 - The anisotropic magnetostriction has been studied in detail for the positive magnetostrictive material of Terfenol-D under two types of magnetomechanical loading. Under the application of the axial compressive stress σ∥ and the axial magnetic field H∥, the axial negative magnetostriction was observed when H∥ increased to coercive field around, which was similar with the butterfly hysteresis in PZT. However, under the application of the axial compressive stress σ∥ and the transversal magnetic field H⊥, the "W" shape magnetostriction was observed firstly, which should be taken into consideration to avoid unexpected accidents for practical applications. The anisotropic phenomenon was explained by the domain rotation mechanism, where the demagnetization field effect was considered due to the shape anisotropy of the materials.

AB - The anisotropic magnetostriction has been studied in detail for the positive magnetostrictive material of Terfenol-D under two types of magnetomechanical loading. Under the application of the axial compressive stress σ∥ and the axial magnetic field H∥, the axial negative magnetostriction was observed when H∥ increased to coercive field around, which was similar with the butterfly hysteresis in PZT. However, under the application of the axial compressive stress σ∥ and the transversal magnetic field H⊥, the "W" shape magnetostriction was observed firstly, which should be taken into consideration to avoid unexpected accidents for practical applications. The anisotropic phenomenon was explained by the domain rotation mechanism, where the demagnetization field effect was considered due to the shape anisotropy of the materials.

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KW - Magnetomechanical loading

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Anisotropic magnetostriction for Tb_0.3Dy_0.7Fe_1.95 alloys under magnetomechanical loading

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Keywords

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