Size Distribution of Fe Oxides Particles in Water-Based and Polyethylene Glycol-Based Colloidal Solutions

As a part of this work colloidal solutions of Fe oxides particles were fabricated by three different methods. The spark erosion method (SE), a wet mechanical grinding with ultrasonic frequency treatment in a ball mill (base liquid - water) with a surfactant sodium dodecylbenzenesulphate (SDBS)) and thermochemical polyol synthesis method (base liquid - polyethylene glycol) were carried out. The paper contains studies of particles size distributions. The particle size distributions were done with the laser sedimentograph Mastersizer 2000 with a module of liquid dispersion HydroS (Malvern Instruments, UK). The morphology and local phase composition was examined using the transmission electron microscope ΠM-Y (upgraded) equipped with a digital imaging system CA-01A. According to the research results, a conclusion about relevance of size of the particles obtained by the forementioned methods for the production of magnetic fluids needs was made in the paper.