Structure of Water-Based Magnetic Liquids by Small-Angle X-Ray Scattering

摘要

Structure of magnetic fluids, which were produced by two methods of synthesis and stabilization of magnetite nanoparticles in aqueous solution of agarose, was considered in the given work. Complex aggregation in the colloidal systems was found according to small-angle synchrotron X-ray scattering (SAXS) technique. Effective size of single polydisperse magnetic particles and fractal dimensions of aggregates in ferrofluids were estimated from experiment. Comparative SAXS analysis indicates that the content of agarose in water almost does not affect on structure of magnetic fluids at nanoscale level.