Fractal Structures on Fe3O4 Ferrofluid: A Small-Angle Neutron Scattering Study
A small-angle neutron scattering (SANS) which is a powerful technique to reveal the large scale structures was applied to investigate the fractal structures of water-based Fe3O4ferrofluid, magnetic fluid. The natural magnetite Fe3O4 from iron sand of several rivers in East Java Province of Indonesia...
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| creator | Putra, Edy Giri Rachman Seong, Baek Seok Shin, Eunjoo Ikram, Abarrul Ani, Sistin Ari Darminto |
| description | A small-angle neutron scattering (SANS) which is a powerful technique to reveal the large scale structures was applied to investigate the fractal structures of water-based Fe3O4ferrofluid, magnetic fluid. The natural magnetite Fe3O4 from iron sand of several rivers in East Java Province of Indonesia was extracted and purified using magnetic separator. Four different ferrofluid concentrations, i.e. 0.5, 1.0, 2.0 and 3.0 Molar (M) were synthesized through a co-precipitation method and then dispersed in tetramethyl ammonium hydroxide (TMAH) as surfactant. The fractal aggregates in ferrofluid samples were observed from their SANS scattering distributions confirming the correlations to their concentrations. The mass fractal dimension changed from about 3 to 2 as ferrofluid concentration increased showing a deviation slope at intermediate scattering vector q range. The size of primary magnetic particle as a building block was determined by fitting the scattering profiles with a log-normal sphere model calculation. The mean average size of those magnetic particles is about 60 – 100 Å in diameter with a particle size distribution σ 0.5. |
| doi_str_mv | 10.1088/1742-6596/247/1/012028 |
| format | Conference Proceeding |
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The size of primary magnetic particle as a building block was determined by fitting the scattering profiles with a log-normal sphere model calculation. 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| source | Institute of Physics Open Access Journal Titles |
| subjects | Ammonium hydroxide Diameters Ferrofluids Fractal geometry Fractals Iron oxides Magnetic fluids Magnetic separators Neutron scattering Neutrons Particle size distribution Physics Separators |
| title | Fractal Structures on Fe3O4 Ferrofluid: A Small-Angle Neutron Scattering Study |
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