The use of ultrasound radiation for the preparation of magnetic fluids

K. V.P.M. Shafi, S. Wizel, T. Prozorov, A. Gedanken

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

Ultrasound radiation has been used for the preparation of amorphous metals, amorphous alloys, amorphous metal oxides and amorphous metal nitrides. In all these cases, the cavitation phenomenon that leads to high temperatures and high pressures was utilized to synthesize the above-mentioned materials as powders having nanometer-sized particles. In this report, we describe the preparation of magnetic fluids formed by the application of ultrasound radiation. Three different systems in which stable magnetic fluids were formed are described. They represent (1) a cobalt colloidal solution in decalin stabilised by oleic acid, (2) a colloidal dispersion of amorphous metallic iron in a polymeric matrix, (3) a Fe2O3 colloidal solution in hexadecane stabilised by oleic acid.

Original languageEnglish
Pages (from-to)38-41
Number of pages4
JournalThin Solid Films
Volume318
Issue number1-2
DOIs
StatePublished - 15 Apr 1998

Bibliographical note

Funding Information:
We thank the Israeli Ministry of Science and Arts for the Binational Indo-Israeli Grant and T.P thank for an Eshkol scholarship.

Keywords

  • Amorphous metals
  • Cavitation phenomenon
  • Ultrasound radiation

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