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Original Articles Open Access
The composite Ni–P+TiO 2 coatings was prepared by code position of Ni–P with TiO 2 powder (anatase) on a copper substrate from the nickel-plating bath in which tit anium dioxide particles were held in suspension. Th e code position was carried out under galvanostatic conditions. To optimize the production conditions of the Ni–P coat ings modified with TiO 2 by the method of mathematical statistics, the full factorial design of experiments was used. The relationship between the percentage content in the electrodeposited composite Ni–P+TiO 2 coatings (y) and the electrodeposition parameters like cathodic current density (j dep), bath pH (pH) as well as content of TiO 2 powder suspended in the galvanic bath (c), has been descri bed by the adequate polynomial equation and illustr ated graphically. The results of the full factorial desi gn showed that the most important effects are Conce ntration of TiO 2 in the bath, the interaction of TiO 2 concentration / pH and, to a lesser extent, deposi tion current density and pH. Such electrochemical code position method may be a good alternative in the field of composite coatings .
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Author(s): M Buanani M Ebn Touhami R A Belakhmima and M Galai
Electrode position, full factorial design, Ni-P-TiO2coatings, composite material, factorial design, experimental factors, electrode