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

被引：11
|
作者：
Lv, Xiangke [1 ,2 ,3 ]
Or, Siu Wing [1 ]
Liu, Wei [2 ,3 ]
Liu, Xionghua [2 ,3 ]
Zhang, Zhidong [2 ,3 ]
机构：
[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
[2] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
[3] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 476卷 / 1-2期
关键词：
Alloys and compounds; Laves phase; Light rare earths; Magnetocrystalline anisotropy; Magnetostriction; Terfenol-D; ANISOTROPY COMPENSATION; BORON;
D O I：
10.1016/j.jallcom.2008.09.081
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Stabilizer (B, Co)-free, light rare earth (Pr)-substituted Laves alloys (Tb0.3Dy0.7)(1-x)PrxFe1.55 (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-x)PrxFe1.55 alloys 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 lambda(a) (=lambda(parallel to) - lambda(perpendicular to)) shows a maximum of 1502 ppm at x = 0.25 as a result of the magnetocrystalline anisotropy compensation. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：24 / 27
页数：4
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