The effect of the synthesis conditions of aluminum-modified nanosized titanium dioxide on the efficiency of its use in electrorheological dispersions
A comparative study of the physicochemical properties of nanodispersed TiO2 samples synthesized from TiCl4 by the sol–gel and coprecipitation methods has shown the advantages of the former from the points of view of both the specific surface area and electrorheological response of the obtained filler in 5% electrorheological dispersions. A correlation has been revealed between the temperature of TiO2 treatment (600–800°C) and its structure, phase state and electrorheological response. The maximum shear stress increment has been observed for dispersions of TiO2 samples that contain 7–10 mol % Al and have been thermotreated at 700°C for 3.0–3.5 h.
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