Concentration and temperature effect in microstructure of ferrofluids

G. Török, V. T. Lebedev, D. Bica, L. Vékás, M. V. Avdeev

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The spatial correlations in magnetite-based ferrofluids (FF) with pentanol carrier have been investigated by small-angle neutron scattering, as dependent on the concentration of magnetic phase (C=0.6-20vol%) and temperature (20-85 °C). Some peculiarities in the structure of FF were detected. An anomalous increase of short range order by heating of low-concentrated FF (C∼0.6-4.0vol%); the formation of short range order at ambient temperature which weakens at growing concentrations C=7-14vol% and the existence of a stable structure at the highest concentration C∼20vol% when particles' shell interpenetrate. Neutron scattering data are discussed with regard to the particles' intrinsic magnetisation enhancement induced by ordering.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume300
Issue number1
DOIs
Publication statusPublished - May 2006

Fingerprint

Magnetic fluids
ferrofluids
Thermal effects
temperature effects
Neutron scattering
microstructure
Microstructure
neutron scattering
Pentanols
Ferrosoferric Oxide
Magnetite
magnetite
ambient temperature
Magnetization
Heating
Temperature
magnetization
heating
augmentation
temperature

Keywords

  • Ferrofluid
  • Neutron scattering
  • Structure

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Concentration and temperature effect in microstructure of ferrofluids. / Török, G.; Lebedev, V. T.; Bica, D.; Vékás, L.; Avdeev, M. V.

In: Journal of Magnetism and Magnetic Materials, Vol. 300, No. 1, 05.2006.

Research output: Contribution to journalArticle

Török, G. ; Lebedev, V. T. ; Bica, D. ; Vékás, L. ; Avdeev, M. V. / Concentration and temperature effect in microstructure of ferrofluids. In: Journal of Magnetism and Magnetic Materials. 2006 ; Vol. 300, No. 1.
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