Correlation between the grain-shape and magnetic properties in nanocrystalline iron

S. Szabó, D. Beke, L. Harasztosi, L. Daróczi, Gy Posgay, M. Kis-Varga

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Correlation between magnetic properties and time evolution of size (d) and shape of grains of pure nanocrystalline iron produced by ball-milling were investigated by Barkhausen-noise and low field magnetization measurements. Strong texture and elongated grain structure were developed after some hours milling time, and the thickness of elongated grains was in accordance with the grain size obtained from X-ray line broadening. After prolonged milling, disruption of the elongated grains and development of equiaxed grain structure was observed. There was a maximum in the Barkhausen-noise when the above lamellar structure was the most typical. It is shown that the coercive force (Hc) is not sensitive to the formation of the grain structure, but the course of the Hc(d) curve strongly depends on the initial and preparation conditions. In accordance with our previous results, the saturation magnetization was independent of the grain size.

Original languageEnglish
Pages (from-to)527-530
Number of pages4
JournalNanostructured Materials
Volume9
Issue number1-8
Publication statusPublished - 1997

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Crystal microstructure
Magnetic properties
Iron
magnetic properties
iron
Lamellar structures
Ball milling
Saturation magnetization
Coercive force
Magnetization
Textures
grain size
X rays
magnetization
balls
textures
saturation
preparation
curves
x rays

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Correlation between the grain-shape and magnetic properties in nanocrystalline iron. / Szabó, S.; Beke, D.; Harasztosi, L.; Daróczi, L.; Posgay, Gy; Kis-Varga, M.

In: Nanostructured Materials, Vol. 9, No. 1-8, 1997, p. 527-530.

Research output: Contribution to journalArticle

Szabó, S, Beke, D, Harasztosi, L, Daróczi, L, Posgay, G & Kis-Varga, M 1997, 'Correlation between the grain-shape and magnetic properties in nanocrystalline iron', Nanostructured Materials, vol. 9, no. 1-8, pp. 527-530.
Szabó, S. ; Beke, D. ; Harasztosi, L. ; Daróczi, L. ; Posgay, Gy ; Kis-Varga, M. / Correlation between the grain-shape and magnetic properties in nanocrystalline iron. In: Nanostructured Materials. 1997 ; Vol. 9, No. 1-8. pp. 527-530.
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