Mechanical and magnetic properties of a novel polymer infiltrated directionally solidified RE-Fe giant magnetostrictive materials

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Newly developed polymer infiltrated grain aligned composite Terfenol-D has the advantages of maintaining the favorable crystal orientation of the directionally grown RFe2 phase. In order to infiltrate the polymer effectively, it is necessary to prepare composition with a low Fe content (0.64 less than or equal to y less than or equal to 1.7) in Tb0.33Dy0.67Fey. With decreasing Fe content, the amount of the eutectic phase increases which can be removed by annealing. This composite shows many improved properties compared with conventional composite or monolithic Terfenol-D material. Through this new material, high magnetostrictive strain can be obtained under relatively low magnetic field. In addition, it shows a considerably higher modulus of rupture of around 65similar to92 MPa in four-point bend test.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2004-07
Language
English
Article Type
Article; Proceedings Paper
Keywords

TERFENOL-D; COMPOSITES

Citation

IEEE TRANSACTIONS ON MAGNETICS, v.40, no.4, pp.2778 - 2780

ISSN
0018-9464
DOI
10.1109/TMAG.2004.832148
URI
http://hdl.handle.net/10203/80402
Appears in Collection
MS-Journal Papers(저널논문)
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