Effect of Modification by Double Doping of Titanium Dioxide Particles on the Rheology of Dielectric Suspensions

Abstract

Abstract The characteristic features of the rheological behavior of dielectric suspensions based on titanium dioxide modified by aluminum and phosphorus and the inter relation between the nature of modifiers and the modifiers-initiated polarization processes at the interface is shown. It has been established that ERFs based on titanium dioxide simultaneously modified by donor and acceptor impurities function stably in the temperature interval 20-80°C, which predetermines the possibility of using them in electrically controlled devices that heat up during operation. The participation of both modifying components in polarization processes proceeding on the titanium dioxide surface is confirmed by its dielectric spectrum. Thus, on the dependence of dielectric loss factor on frequency two maxima have been identified that correspond to the number of different-type inclusions in a sample.