Magnetic properties of rapidly quenched Fe100-xSix (15 <x <34) alloys

L. Varga, F. Mazaleyrat, J. Kovac, A. Kákay

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

This paper reports on the magnetic data of Fe100-xSix (15 <x <34) alloys obtained by rapid quenching from the melt, complementing the data in the literature existing for low silicon content (x <25). The X-ray diffraction experiments shows that the basically cubic structure change from DO3 structures below 28 at.% Si to B2 structure around x = 33. The thermomagnetic curves show a single ferro-paramagnetic transition on heating in the whole concentration range. Our saturation magnetization and Curie temperature data for high Si contents represent an extension of low Si content data up to 34 at.% where we could successfully prepare these alloys with cubic structure. The spin wave stiffness versus Curie temperature relation is approximately linear up to x = 37.5 at.% Si. The soft magnetic metastable, nanocrystalline Fe67Si33 ribbon with Ms = 0.6T and a large resistivity of 200 μΩ cm is a hopeful candidate for powder core applications at high frequencies.

Original languageEnglish
Pages (from-to)946-949
Number of pages4
JournalMaterials Science and Engineering A
Volume304-306
Issue number1-2
DOIs
Publication statusPublished - May 31 2001

Fingerprint

Curie temperature
Magnetic properties
magnetic properties
Rapid quenching
Spin waves
Silicon
Saturation magnetization
Powders
Stiffness
Heating
X ray diffraction
ribbons
magnons
stiffness
saturation
magnetization
electrical resistivity
heating
Experiments
silicon

Keywords

  • Curie temperature
  • Fe-Si alloys
  • Saturation magnetization
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Magnetic properties of rapidly quenched Fe100-xSix (15 <x <34) alloys. / Varga, L.; Mazaleyrat, F.; Kovac, J.; Kákay, A.

In: Materials Science and Engineering A, Vol. 304-306, No. 1-2, 31.05.2001, p. 946-949.

Research output: Contribution to journalArticle

Varga, L. ; Mazaleyrat, F. ; Kovac, J. ; Kákay, A. / Magnetic properties of rapidly quenched Fe100-xSix (15 <x <34) alloys. In: Materials Science and Engineering A. 2001 ; Vol. 304-306, No. 1-2. pp. 946-949.
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