Magnetostriction and magnetomechanical properties of grain-oriented Tb0.33Dy0.67Fey/Epoxy composite

The magnetostriction and dynamic magnetomechanical properties of the directionally solidified Tb0.33Dy0.67Fey/ Epoxy composite were investigated as a function of volume fraction of RFe2 under a magnetic field. This composite was fabricated by infiltrating epoxy after extracting a eutectic phase of the directionally solidified Tb0.33Dy0.67Fey. It was found that the magnetostriction of the composite is higher than that of the as-grown specimens, and the maximum magnetostrictive strain of the sample, which has a volume fraction of 0.72, showed about 1000 ppm at H-3 = 80 kA/m and an optimum preload of 8 MPa. Furthermore, the dynamic magnetomechanical properties of the composite Tb0.33Dy0.67Fey, which is the sensitivity of the strain to the applied field, increased by about two times that of as-grown samples.
Publisher
SPRINGER
Issue Date
2005-04
Language
ENG
Keywords

TERFENOL-D; DIRECTIONAL SOLIDIFICATION; SINGLE-CRYSTALS; HEAT-TREATMENT; MODULI

Citation

APPLIED PHYSICS A-MATERIALS SCIENCE PROCESSING, v.80, no.7, pp.1563 - 1566

ISSN
0947-8396
DOI
10.1007/s00339-004-2948-8
URI
http://hdl.handle.net/10203/2407
Appears in Collection
MS-Journal Papers(저널논문)
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