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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2010

Shape effect in the magnetostriction of ferromagnetic composite

G. Diguet

Résumé

The magnetostriction of composite consisting of a soft matrix, non-magnetic, randomly filled by ferromagnetic particles is measured. The measured elongation on cylinder-shaped samples displays shape dependence. A model based on the demagnetizing field and the effective Young's modulus is provided. Both calculation and measurement show a positive magnetostriction with larger values as the samples are flatter. The model is derived to have the behavior of the elongation as a function of the filling factor. An expression of the optimal filling factor, providing a maximal strain, is also expressed. © 2010 Elsevier B.V. All rights reserved.

Dates et versions

hal-01813955 , version 1 (12-06-2018)

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G. Diguet, E. Beaugnon, J.Y. Cavaillé. Shape effect in the magnetostriction of ferromagnetic composite. Journal of Magnetism and Magnetic Materials, 2010, 322 (21), pp.3337-3341. ⟨10.1016/j.jmmm.2010.06.020⟩. ⟨hal-01813955⟩
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