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

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

7 Citations (Scopus)

Abstract

The dynamic magnetomechanical properties of Sm_0.88Dy_0.12Fe_1.93/epoxy composites with 51 vol% Sm_0.88Dy_0.12Fe_1.93 particles were investigated. The dynamic relative permeability (μ_r33) showed a flat response with frequency for all bias fields (H_Bias) apart from the fundamental-shape-resonance-induced variations in the vicinity of 42 kHz. The free ( μ_{r 33}^T ) and clamped ( μ_{r 33}^S ) permeabilities attained their maximum values at H_Bias = 20 kA / m. The elastic modulus at constant field strength (E₃^H) and that at constant flux density (E₃^B) exhibited a steady negative -ΔE effect for H_Bias{less-than or slanted equal to}240 kA/m. The dynamic strain coefficient (d₃₃) displayed a broad negative maximum around H_Bias = 180 kA / m.

Original language	English
Pages (from-to)	e439-e441
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
SmDyFe

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

More information

10.1016/j.jmmm.2006.01.210

Cite this

@article{08cf10deb8b64888a75a33426cbfe0d3,

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\% Sm0.88Dy0.12Fe1.93 particles 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.",

keywords = "Domain wall motion, Dynamic magnetomechanical properties, Magnetostrictive particulate composites, SmDyFe",

author = "Or, \{Siu Wing\} and Wong, \{Wai Yin\}",

note = "Funding Information: This work was supported by the Hong Kong Research Grants Council under Grant PolyU 5289/04E and the Hong Kong Polytechnic University under Central Research Grant A-PE05 and the Centre for Smart Materials.",

year = "2006",

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doi = "10.1016/j.jmmm.2006.01.210",

language = "English",

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T1 - Dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites

AU - Or, Siu Wing

AU - Wong, Wai Yin

N1 - Funding Information: This work was supported by the Hong Kong Research Grants Council under Grant PolyU 5289/04E and the Hong Kong Polytechnic University under Central Research Grant A-PE05 and the Centre for Smart Materials.

PY - 2006/9/1

Y1 - 2006/9/1

N2 - The dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites with 51 vol% Sm0.88Dy0.12Fe1.93 particles 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.

AB - The dynamic magnetomechanical properties of Sm0.88Dy0.12Fe1.93/epoxy composites with 51 vol% Sm0.88Dy0.12Fe1.93 particles 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.

KW - Domain wall motion

KW - Dynamic magnetomechanical properties

KW - Magnetostrictive particulate composites

KW - SmDyFe

UR - https://www.scopus.com/pages/publications/33646882167

U2 - 10.1016/j.jmmm.2006.01.210

DO - 10.1016/j.jmmm.2006.01.210

M3 - Journal article

SN - 0304-8853

VL - 304

SP - e439-e441

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1

ER -