Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5373
Title: Dynamic magnetoelastic properties of epoxy-bonded Sm₀. ₈₈Nd₀.₁₂Fe₁.₉₃ pseudo-1-3 negative magnetostrictive particulate composite
Authors: Yang, F
Leung, CM
Or, DSW 
Liu, W
Zhang, Z
Duan, Y
Keywords: Elastic moduli
Filled polymers
Iron alloys
Magnetic domain walls
Magnetic flux
Magnetic permeability
Magnetoelastic effects
Magnetostriction
Neodymium alloys
Samarium alloys
Issue Date: 1-Apr-2012
Publisher: American Institute of Physics
Source: Journal of applied physics, 1 Apr. 2012, v. 111, no. 7, 07A940, p. 1-3 How to cite?
Journal: Journal of applied physics 
Abstract: Pseudo-1-3 negative magnetostrictive particulate composite is prepared by embedding and aligning light rare earth (Sm and Nd)-based negative magnetostrictive Sm₀. ₈₈Nd₀.₁₂Fe₁.₉₃ particles with randomly distributed sizes of 10–180 μm in a passive epoxy matrix using a particle volume fraction of 0.5. The dynamic magnetoelastic properties of the composite are investigated as a function of both magnetic bias field and frequency under a constant magnetic drive field. The dynamic relative permeability (μ[sub r]₃₃) exhibits a flat frequency response with no observable dispersion at all bias field levels, except for the fundamental shape resonance range of 40–50 kHz. The free (μ[sub r]₃₃[sup T]) and clamped (μ[sub r]₃₃[sup S]) relative permeabilities attain their maximum values at low bias field levels of ≤10 kA/m because of the relatively easy 180° domain-wall motion. The elastic modulus at constant magnetic field strength (E₃[sup H]) and that at constant magnetic flux density (E₃[sup B]) show a maximum negative-ΔE effect, accompanying a maximum dynamic strain coefficient (d₃₃) of −2 nm/A, at about 100 kA/m due to the maximum motion of non-180° domain walls.
URI: http://hdl.handle.net/10397/5373
ISSN: 0021-8979
EISSN: 1089-7550
DOI: 10.1063/1.3679045
Rights: © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Fang Yang et al., J. Appl. Phys. 111, 07A940 (2012) and may be found at http://link.aip.org/link/?jap/111/07A940.
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