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Structure of the magnetite-oleic acid-decalin magnetic fluid from small-angle neutron scattering data |
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| Authors: | A V Nagornyi V I Petrenko L A Bulavin M V Avdeev L Almásy L Rosta V L Aksenov |
| Institution: | 1. Joint Institute for Nuclear Research, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980, Russia 2. Taras Shevchenko National University of Kyiv, ul. Volodymyrska 60, Kyiv, 01601, Ukraine 3. Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, 29-33 Konkoly-Thege M. Street, Budapest, Hungary 4. Konstantinov Petersburg Nuclear Physics Institute, National Research Centre “Kurchatov Institute,”, Orlova Roshcha, Gatchina, Leningrad oblast, 188300, Russia |
| Abstract: | Structural parameters of the magnetite-oleic acid-decalin magnetic fluid at various excesses of oleic acid (up to 25 vol %) have been determined using small-angle neutron scattering. Based on the comparison of the behavior of oleic acid in the magnetic fluid and in the pure solvent (decalin), it has been concluded that the interaction between the molecules of free (unadsorbed) surfactant changes in the presence of magnetic nanoparticles. However, the system remains stable and does not form aggregates of magnetic particles or free oleic acid. These results are compared with the previously presented data for similar benzene-based magnetic fluids. |
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