Structural, magnetic, and magnetostrictive properties of Laves (Tb0.3Dy0.7)1-xPrxFe1.55 (0 ≤ x ≤ 0.4) alloys

Xiangke Lv; Siu Wing Or; Wei Liu; Xionghua Liu; Zhidong Zhang

doi:10.1016/j.jallcom.2008.09.081

Structural, magnetic, and magnetostrictive properties of Laves (Tb0.3Dy0.7)1-xPrxFe1.55 (0 ≤ x ≤ 0.4) alloys

Xiangke Lv, Siu Wing Or, Wei Liu, Xionghua Liu, Zhidong Zhang

The Hong Kong Polytechnic University

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

11 Citations (Scopus)

Abstract

Stabilizer (B, Co)-free, light rare earth (Pr)-substituted Laves alloys (Tb0.3Dy0.7)1-xPrxFe1.55(0 ≤ x ≤ 0.4) are synthesized, and their structural, magnetic, and magnetostrictive properties are investigated. X-ray diffraction analysis confirms the presence of single cubic Laves phase with an MgCu2-type structure in the (Tb0.3Dy0.7)1-xPrxFe1.55alloys with 0 ≤ x ≤ 0.35. The lattice parameter a of the Laves phase increases, while the Curie temperature decreases, with increasing x from 0 to 0.35. The saturation magnetization of the alloys decreases with increasing x. The linear anisotropic magnetostriction λa(=λ||- λ⊥) shows a maximum of 1502 ppm at x = 0.25 as a result of the magnetocrystalline anisotropy compensation.

Original language	English
Pages (from-to)	24-27
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	476
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.09.081
Publication status	Published - 12 May 2009

Keywords

Alloys and compounds
Laves phase
Light rare earths
Magnetocrystalline anisotropy
Magnetostriction
Terfenol-D

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
Materials Chemistry
Metals and Alloys

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10.1016/j.jallcom.2008.09.081

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title = "Structural, magnetic, and magnetostrictive properties of Laves (Tb0.3Dy0.7)1-xPrxFe1.55 (0 ≤ x ≤ 0.4) alloys",

abstract = "Stabilizer (B, Co)-free, light rare earth (Pr)-substituted Laves alloys (Tb0.3Dy0.7)1-xPrxFe1.55(0 ≤ x ≤ 0.4) are synthesized, and their structural, magnetic, and magnetostrictive properties are investigated. X-ray diffraction analysis confirms the presence of single cubic Laves phase with an MgCu2-type structure in the (Tb0.3Dy0.7)1-xPrxFe1.55alloys with 0 ≤ x ≤ 0.35. The lattice parameter a of the Laves phase increases, while the Curie temperature decreases, with increasing x from 0 to 0.35. The saturation magnetization of the alloys decreases with increasing x. The linear anisotropic magnetostriction λa(=λ||- λ⊥) shows a maximum of 1502 ppm at x = 0.25 as a result of the magnetocrystalline anisotropy compensation.",

keywords = "Alloys and compounds, Laves phase, Light rare earths, Magnetocrystalline anisotropy, Magnetostriction, Terfenol-D",

author = "Xiangke Lv and Or, {Siu Wing} and Wei Liu and Xionghua Liu and Zhidong Zhang",

year = "2009",

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doi = "10.1016/j.jallcom.2008.09.081",

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T1 - Structural, magnetic, and magnetostrictive properties of Laves (Tb0.3Dy0.7)1-xPrxFe1.55 (0 ≤ x ≤ 0.4) alloys

AU - Lv, Xiangke

AU - Or, Siu Wing

AU - Liu, Wei

AU - Liu, Xionghua

AU - Zhang, Zhidong

PY - 2009/5/12

Y1 - 2009/5/12

N2 - Stabilizer (B, Co)-free, light rare earth (Pr)-substituted Laves alloys (Tb0.3Dy0.7)1-xPrxFe1.55(0 ≤ x ≤ 0.4) are synthesized, and their structural, magnetic, and magnetostrictive properties are investigated. X-ray diffraction analysis confirms the presence of single cubic Laves phase with an MgCu2-type structure in the (Tb0.3Dy0.7)1-xPrxFe1.55alloys with 0 ≤ x ≤ 0.35. The lattice parameter a of the Laves phase increases, while the Curie temperature decreases, with increasing x from 0 to 0.35. The saturation magnetization of the alloys decreases with increasing x. The linear anisotropic magnetostriction λa(=λ||- λ⊥) shows a maximum of 1502 ppm at x = 0.25 as a result of the magnetocrystalline anisotropy compensation.

AB - Stabilizer (B, Co)-free, light rare earth (Pr)-substituted Laves alloys (Tb0.3Dy0.7)1-xPrxFe1.55(0 ≤ x ≤ 0.4) are synthesized, and their structural, magnetic, and magnetostrictive properties are investigated. X-ray diffraction analysis confirms the presence of single cubic Laves phase with an MgCu2-type structure in the (Tb0.3Dy0.7)1-xPrxFe1.55alloys with 0 ≤ x ≤ 0.35. The lattice parameter a of the Laves phase increases, while the Curie temperature decreases, with increasing x from 0 to 0.35. The saturation magnetization of the alloys decreases with increasing x. The linear anisotropic magnetostriction λa(=λ||- λ⊥) shows a maximum of 1502 ppm at x = 0.25 as a result of the magnetocrystalline anisotropy compensation.

KW - Alloys and compounds

KW - Laves phase

KW - Light rare earths

KW - Magnetocrystalline anisotropy

KW - Magnetostriction

KW - Terfenol-D

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DO - 10.1016/j.jallcom.2008.09.081

M3 - Journal article

SN - 0925-8388

VL - 476

SP - 24

EP - 27

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Structural, magnetic, and magnetostrictive properties of Laves (Tb0.3Dy0.7)1-xPrxFe1.55 (0 ≤ x ≤ 0.4) alloys

Abstract

Keywords

ASJC Scopus subject areas

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