Small angle polarized neutrons (SANSPOL) investigation of surfactant free magnetic fluid of uncoated and silica-coated cobalt-ferrite nanoparticles

Article Abstract:

An attempt is made to synthesize and characterize the magnetic fluids formed from uncoated and silica-coated cobalt-ferrite nanoparticles dispersed in water by means o transmission electron microscopy and small neutron scattering of polarized neutrons (SANSPOL). Particle shape, size, size distribution of the cores and shell thickness are described for both uncoated and silica-coated cobalt-ferrite nanoparticles.

Iron compounds, Transmission electron microscopes

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Mossbauer study and magnetic properties of M-type barium hexaferrite doped with Co+ Ti and Bi + Ti ions

Article Abstract:

The influence of complex dopants ([Co.sup.2+]+[Ti.sup.4+]) and ([Bi.sup.3+]+[Ti.sup.4+]) on the fine structure and magnetic properties of M-type barium hexaferrite prepared by hydroxide and carbonate precipitations is investigated. The distribution of cations over five nonequivalent positions of barium hexaferrite with magnetoplumbite structure is discussed.

Barium Compounds, Titanium compounds, Mossbauer spectroscopy, Ferrites (Magnetic materials), Report

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