Dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites

Siu Wing Or; Wai Yin Wong

doi:10.1016/j.jmmm.2006.01.210

Dynamic magnetomechanical properties of Sm_0.88Dy_0.12Fe_1.93/epoxy composites

Siu Wing Or, Wai Yin Wong

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

7 Citations (Scopus)

Abstract

The dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites with 51 vol% Sm0.88Dy0.12Fe1.93particles were investigated. The dynamic relative permeability (μr33) showed a flat response with frequency for all bias fields (HBias) apart from the fundamental-shape-resonance-induced variations in the vicinity of 42 kHz. The free ( μr 33T) and clamped ( μr 33S) permeabilities attained their maximum values at HBias= 20 kA / m. The elastic modulus at constant field strength (E3H) and that at constant flux density (E3B) exhibited a steady negative -ΔE effect for HBias{less-than or slanted equal to}240 kA/m. The dynamic strain coefficient (d33) displayed a broad negative maximum around HBias= 180 kA / m.

Original language	English
Journal	Journal of Magnetism and Magnetic Materials
Volume	304
Issue number	1
DOIs	https://doi.org/10.1016/j.jmmm.2006.01.210
Publication status	Published - 1 Sept 2006

Keywords

Domain wall motion
Dynamic magnetomechanical properties
Magnetostrictive particulate composites
Sm Dy Fe 0.88 0.12 1.93

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

More information

10.1016/j.jmmm.2006.01.210

Cite this

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title = "Dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites",

abstract = "The dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites with 51 vol% Sm0.88Dy0.12Fe1.93particles were investigated. The dynamic relative permeability (μr33) showed a flat response with frequency for all bias fields (HBias) apart from the fundamental-shape-resonance-induced variations in the vicinity of 42 kHz. The free ( μr 33T) and clamped ( μr 33S) permeabilities attained their maximum values at HBias= 20 kA / m. The elastic modulus at constant field strength (E3H) and that at constant flux density (E3B) exhibited a steady negative -ΔE effect for HBias{less-than or slanted equal to}240 kA/m. The dynamic strain coefficient (d33) displayed a broad negative maximum around HBias= 180 kA / m.",

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AB - The dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites with 51 vol% Sm0.88Dy0.12Fe1.93particles were investigated. The dynamic relative permeability (μr33) showed a flat response with frequency for all bias fields (HBias) apart from the fundamental-shape-resonance-induced variations in the vicinity of 42 kHz. The free ( μr 33T) and clamped ( μr 33S) permeabilities attained their maximum values at HBias= 20 kA / m. The elastic modulus at constant field strength (E3H) and that at constant flux density (E3B) exhibited a steady negative -ΔE effect for HBias{less-than or slanted equal to}240 kA/m. The dynamic strain coefficient (d33) displayed a broad negative maximum around HBias= 180 kA / m.

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