Physicochemical and electrorheological properties of titanium dioxide modified with metal oxides

Abstract

The properties of electrorheological fluids containing dispersed phase of titanium dioxide nano particles prepared via the sol-gel method and modified with metal oxides have been studied. Titanium diox ide has the anatase structure with crystallite sizes of 8-10 nm and a specific surface area of 90-140 m 2 /g. It has been found that the magnitude of the electrorheological response of the filler is determined by the specific surface area and the content of a modifying component. The strongest electrorheological response has been revealed for titanium dioxide modified with aluminum oxide at an Al content of 6.5-7.0 mol % relative to TiO 2 .