Electrorheological behavior of mechanochemically activated kaolinite/titanium oxide composite

By means of the combination of mechanochemical method and sol-gel technique the modified kaolinite/titanium oxide composite was prepared. The structure analyses XRD, EDS showed that composite was consisted of the mechanochemically activated kaolinite/NaCl complex coating with titanium oxide. A distinct enhancement in the electrorheological effect under DC electric field was found by using such particles dispersed in silicone oil. The shear stresses of modified kaolinite/titanium oxide suspension were about 9.5 kPa at 4kV/mm, which are 11.5 times of that of pure kaolinite ERF and 2.2 times of that of kaolinite/TiO₂ ERF reported previous respectively.