Author/Authors :
Navidirad, M. materials and energy research center (merc) - Department of Ceramic, كرج, ايران , Raissi, B. materials and energy research center (merc) - Department of Ceramic, كرج, ايران , Riahifar, R. materials and energy research center (merc) - Department of Ceramic, كرج, ايران , Sahba Yaghmaee, M. materials and energy research center (merc) - Department of Ceramic, كرج, ايران , Kazemzadeh, A. materials and energy research center (merc) - Department of Semiconductors, كرج, ايران , Taati-Asil, F. materials and energy research center (merc) - Department of Ceramic, كرج, ايران
Abstract :
In this work, the result of additives on electrophoretically deposited patterns of ceramic nanoparticles with totally different chemical composition in the case of using AC electrical field are studied. For this purpose, by the assistance of coplanar electrodes with an interelectrode gap size of 150 μm, heterogeneous AC electrical field was applied to the suspensions of TiO2-acetone and WO3- acetone in the presence and absence of Polyethylenimine (PEI) as an additive at the frequency of 1Hz. The results verified that whereas WO3 nanoparticles tend to fill the gap once additive was not used, they show no tendency to enter it within the presence of PEI. However, TiO2 nanoparticles that leave the gap once additive was not applied, fill it in the presence of PEI.
Keywords :
AC electrophoretic deposition , TiO2 nanoparticles , WO3 nanoparticles , modifier
