Journal of Scientific Research and Reports, ISSN: 2320-0227,Vol.: 2, Issue.: 1 (January-June)
Electrophoretic Deposition of Alumina and Nickel Oxide Particles
Bintou Ouedraogo1* and Oumarou Savadogo1 1Chemical engineering department, Montreal polytechnic school, QC, Canada, H3C 3A7.
Bintou Ouedraogo1* and Oumarou Savadogo1
1Chemical engineering department, Montreal polytechnic school, QC, Canada, H3C 3A7.
(1) Francisco Torrens, Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna, València, Spain.
(3) Deren Wang, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, P. R. China.
(4) Cyrus Zamani, Universitat de Barcelona, Spain.
Complete Peer review History: http://www.sciencedomain.org/review-history/1146
Electrophoretic deposition (EPD) of alumina and nickel oxide particles on nickel substrate has been investigated. Pure ethanol and a mixture of ethanol and water were used as solvents. The stability of Al2O3 and NiO suspension in two solvents was studied and compared in terms of zeta potential, electrophoretic mobility and conductivity. The influence of different solvents and deposition parameters such as suspension conductivity, applied voltage and time of deposition on the weight gain and the morphology of deposits were also evaluated. The results demonstrated that mixture of ethanol and water as a solvent appears to be advantageous over pure ethanol for EPD of Al2O3 and NiO from standpoint of a good stability of suspension, a higher electrophoretic mobility and also due to the uniform deposits in terms of microstructures and thicknesses. Studies the relationship between the increase in applied voltage during EPD and the decrease in conductivity, have shown that the increase in voltage was completely caused by the decrease in conductivity of suspension.
Electrophoretic deposition; ethanol; solvents; conductivity; Al2O3; NiO.
DOI : 10.9734/JSRR/2013/2559Review History Comments