| 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 | |
| Source Publication | Journal of Alloys and Compounds
 |
| ISSN | 0925-8388 |
| Volume | 476Issue:1-2Pages:271-275 |
| Abstract | 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. |
| description.department | [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 |
| Keyword | 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 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/32173 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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. |
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