Title :
An Iron-cobalt ´alloy´ magnetic fluid
Author :
Lambrick, D.B. ; Mason, N. ; Harris, N.J. ; Russell, G.J. ; Hoon, S.R. ; Kilner, M.
Author_Institution :
University of Durham, Durham, UK
fDate :
9/1/1985 12:00:00 AM
Abstract :
The first preparation of a magnetic fluid consisting of \´alloy\´ particles of Fe-Co in colloidal suspension is reported. This has been prepared by the decomposition of a mixed metal carbonyl in the presence of surfactants. Electron diffraction has revealed particles with the "ordered" (superlattice) 1:1 ; Fe:Co structure whilst transmission electron microscopy indicates mean particle sizes in the range 5 - 8 nm. Stability in the gravitational field has been achieved using the surfactant Duomeen-TDO. Saturation magnetizations of up to ∼3 JT-1kg-1(30 Gauss) have been obtained in the as prepared state.
Keywords :
Magnetic liquids; Cobalt; Diffraction; Iron alloys; Magnetic levitation; Magnetic liquids; Magnetic superlattices; Nickel; Nitrogen; Saturation magnetization; Transmission electron microscopy;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1985.1064096
