Dynamic magnetomechanical properties of epoxy-bonded (Tb(0.3)Dy(0.7))(1-x)Pr(x)Fe(1.55) (0 <= x <= 0.4) pseudo-1-3 magnetostrictive composites

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	Dynamic magnetomechanical properties of epoxy-bonded (Tb(0.3)Dy(0.7))(1-x)Pr(x)Fe(1.55) (0 <= x <= 0.4) pseudo-1-3 magnetostrictive composites
	X. Lv; S. W. Or; W. Liu; X. H. Liu; Z. D. Zhang
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	476 期号:1-2 页码:271-275
摘要	Pseudo-1-3 magnetostrictive composites of 0.5 volume fraction are fabricated by embedding and aligning stabilizer (B, Co)-free, light rare earth (Pr)-contained magnetostrictive (Tb(0.3)Dy(0.7))(1-x)Pr(x)Fe(1.55) (0 <= x <= 0.4) particles with a size distribution of 10-300 mu m in a passive epoxy matrix. The dynamic magnetomechanical properties of the composites with different Pr content x are investigated as a function of both bias field (=10-200 kA/m) and frequency (=25 Hz-70 kHz). The composites show similar qualitative trends in properties for all x with no frequency dispersion effect except for the resonance range. The dynamic relative permeability mu(T)(r33) demonstrates a decreasing trend with increasing x for the whole range of bias field due to the weakening of saturation magnetization with increasing Pr content. The two elastic moduli E(3)(H) and E(3)(B), which result in negative-Delta E with maximum dynamic strain coefficient d(33) and dynamic magnetome-chanical coupling coefficient k(33) near 140 kA/m bias in all composites, decrease with increasing x for all biases owing to the increasing compliance contribution from Pr. The (Tb(0.3)Dy(0.7))(0.75)Pr(0.25)Fe(1.55) composite exhibits the largest d(33) and k(33) at 140 kA/m bias as a result of the compensation for magnetocrystalline anisotropy. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[lv, xiangke; or, siu wing] hong kong polytech univ, dept elect engn, kowloon, hong kong, peoples r china. [lv, xiangke; liu, wei; liu, xionghua; zhang, zhidong] chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china. [lv, xiangke; liu, wei; liu, xionghua; zhang, zhidong] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;or, sw (reprint author), hong kong polytech univ, dept elect engn, kowloon, hong kong, peoples r china;eeswor@polyu.edu.hk
关键词	Dynamic Magnetomechanical Properties Light Rare Earths Magnetostrictive Alloys Magnetostrictive Composites Stabilizing Elements Terfenol-d Magnetic-properties Elastic-moduli Alloys Boron
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32173
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Lv,S. W. Or,W. Liu,et al. Dynamic magnetomechanical properties of epoxy-bonded (Tb(0.3)Dy(0.7))(1-x)Pr(x)Fe(1.55) (0 <= x <= 0.4) pseudo-1-3 magnetostrictive composites[J]. Journal of Alloys and Compounds,2009,476(1-2):271-275.
APA	X. Lv,S. W. Or,W. Liu,X. H. Liu,&Z. D. Zhang.(2009).Dynamic magnetomechanical properties of epoxy-bonded (Tb(0.3)Dy(0.7))(1-x)Pr(x)Fe(1.55) (0 <= x <= 0.4) pseudo-1-3 magnetostrictive composites.Journal of Alloys and Compounds,476(1-2),271-275.
MLA	X. Lv,et al."Dynamic magnetomechanical properties of epoxy-bonded (Tb(0.3)Dy(0.7))(1-x)Pr(x)Fe(1.55) (0 <= x <= 0.4) pseudo-1-3 magnetostrictive composites".Journal of Alloys and Compounds 476.1-2(2009):271-275.