Magnetostrictive properties of polymer-bonded amorpnous Tb-Fe-B composites

S. R. Kim, S. Y. Kang, J. K. Park, J. T. Nam, Derac Son, Sang Ho Lim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Amorphous ribbons of an alloy with the composition (Tb 0.33Fe0.67)0.98B0.02, which exhibit good magnetostrictive properties at low magnetic fields, are bonded with a phenol-based binder to fabricate bulk composites. Efforts to determine optimum fabrication parameters are made by examining magnetic and mechanical properties of bulk compacts obtained at various fabrication conditions. From the binder content dependence of magnetostriction and compressive strength, the optimum binder content is estimated to be about 4.3 wt %, taking into account magnetostrictive and mechanical properties and the necessity of reducing nonmagnetic binder content. The two properties of magnetostriction and compressive strength vary nearly linearly with the compaction pressure; as the compaction pressure varies from 0.25 to 1.0 GPa, magnetostriction decreases but compressive strength increases, making it difficult to determine the optimum compaction pressure. A magnetostriction of 493 ppm (at 1.1 kOe) is achieved from the present bulk composites, together with a high dλ/dH (sensitivity of magnetostriction with applied magnetic field) of 1 ppm/Oe.

Original languageEnglish
Pages (from-to)7285-7287
Number of pages3
JournalJournal of Applied Physics
Volume83
Issue number11
Publication statusPublished - 1998 Dec 1
Externally publishedYes

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magnetostriction
compressive strength
composite materials
polymers
mechanical properties
fabrication
magnetic fields
phenols
ribbons
magnetic properties
sensitivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kim, S. R., Kang, S. Y., Park, J. K., Nam, J. T., Son, D., & Lim, S. H. (1998). Magnetostrictive properties of polymer-bonded amorpnous Tb-Fe-B composites. Journal of Applied Physics, 83(11), 7285-7287.

Magnetostrictive properties of polymer-bonded amorpnous Tb-Fe-B composites. / Kim, S. R.; Kang, S. Y.; Park, J. K.; Nam, J. T.; Son, Derac; Lim, Sang Ho.

In: Journal of Applied Physics, Vol. 83, No. 11, 01.12.1998, p. 7285-7287.

Research output: Contribution to journalArticle

Kim, SR, Kang, SY, Park, JK, Nam, JT, Son, D & Lim, SH 1998, 'Magnetostrictive properties of polymer-bonded amorpnous Tb-Fe-B composites', Journal of Applied Physics, vol. 83, no. 11, pp. 7285-7287.
Kim SR, Kang SY, Park JK, Nam JT, Son D, Lim SH. Magnetostrictive properties of polymer-bonded amorpnous Tb-Fe-B composites. Journal of Applied Physics. 1998 Dec 1;83(11):7285-7287.
Kim, S. R. ; Kang, S. Y. ; Park, J. K. ; Nam, J. T. ; Son, Derac ; Lim, Sang Ho. / Magnetostrictive properties of polymer-bonded amorpnous Tb-Fe-B composites. In: Journal of Applied Physics. 1998 ; Vol. 83, No. 11. pp. 7285-7287.
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