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Structure of colloidal particles in aqueous ferrofluid

Gy. Török2 - V. T. Lebedev1 - D. N. Orlova1

1 Petersburg Nuclear Physics Institute 188300 Gatchina, St.Petersburg dist., Russia
2 Research Institute for Solid State Physics and Optics P.O.Box 49, H-1525 Budapest, Hungary

Varying D2Ø concentration in aqueous \Fe3Ø4 ferrofluid, containing natural \Fe and 54\Fe, we have analysed the surfactant shell structure by polarised neutron small-angle scattering (SANS), separating the nuclear coherent scattering from incoherent and magnetic component. On magnetic core surface there was found the discontinuous layer of surfactant (islands, covering 30-50\0f grain area). Figs 3, Refs 12.

Magnetohydrodynamics 38, No. 3, 277-280, 2002 [PDF, 0.15 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X