Magnetoelastic properties of polymer-bonded Sm0.88Dy0.12Fe0.93 pseudo-1-3 composites

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	Magnetoelastic properties of polymer-bonded Sm0.88Dy0.12Fe0.93 pseudo-1-3 composites
	W. J. Ren; S. W. Or; H. L. W. Chan; Z. D. Zhang
	2005
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	293 期号:3 页码:908-912
摘要	Pseudo-1-3 magnetostrictive composites of approximately 0.6 volume-fraction Sm0.88Dy0.12Fe1.93 particles and epoxy were fabricated, and their quasi-static and dynamic magnetoelastic properties were investigated. The dynamic relative permeability (μ(γ 33)) exhibited a flat response with frequency, except for the variation associated with the fundamental shape resonance of the samples at about 46 kHz. Both μ(T)(r)(33) (at constant stress) and μ(s)(r)(33) (at constant strain) reached their maximum values at a magnetic bias field (H-Bias) of about 20kA/m due to the relatively easy 180&DEG; domain-wall motion. The two elastic moduli, E-H(3) (at constant magnetic field strength) and E-3(B) (at constant magnetic flux density), showed a small decrease with increasing H-Bias with no trace of negative - &UDelta; E effect in the H-Bias range of 5-240 kA/m. The saturation magnetostriction (λ(S)) was not attained at the highest available field level, reflecting the existence of relatively high magnetocrystalline anisotropy in the material. The dynamic strain coefficient (d(33)) displayed a broad negative maximum around H-Bias = 180kA/m as a result of the maximum motion of non-180&DEG; domain walls. © 2004 Elsevier B.V. All rights reserved.
部门归属	hong kong polytech univ, dept appl phys, kowloon, hong kong, peoples r china. hong kong polytech univ, ctr mat res, kowloon, hong kong, peoples r china. chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;or, sw (reprint author), hong kong polytech univ, dept appl phys, kowloon, hong kong, peoples r china;apswor@polyu.edu.hk
关键词	Magnetoelastic Properties Sm0.88dy0.12fe1.93 Alloy Magnetostrictive Composites Domain Wall Motion Transducers And Actuators Terfenol-d Composites Magnetostriction
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WOS记录号	WOS:000229526200009
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35019
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. J. Ren,S. W. Or,H. L. W. Chan,et al. Magnetoelastic properties of polymer-bonded Sm0.88Dy0.12Fe0.93 pseudo-1-3 composites[J]. Journal of Magnetism and Magnetic Materials,2005,293(3):908-912.
APA	W. J. Ren,S. W. Or,H. L. W. Chan,&Z. D. Zhang.(2005).Magnetoelastic properties of polymer-bonded Sm0.88Dy0.12Fe0.93 pseudo-1-3 composites.Journal of Magnetism and Magnetic Materials,293(3),908-912.
MLA	W. J. Ren,et al."Magnetoelastic properties of polymer-bonded Sm0.88Dy0.12Fe0.93 pseudo-1-3 composites".Journal of Magnetism and Magnetic Materials 293.3(2005):908-912.