Physicochemical and Electrorheological Properties of Titanium Dioxide Modified with Metal Oxides

摘要

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 dioxide 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.