%0 Journal Article %T Multi-step Electrophoretic Deposition of α-Al2O3 Nanoparticles on Carbon Substrate (TECHNICAL NOTE) %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A sadeghi, ali asghar %D 2013 %\ 01/01/2013 %V 26 %N 1 %P 19-24 %! Multi-step Electrophoretic Deposition of α-Al2O3 Nanoparticles on Carbon Substrate (TECHNICAL NOTE) %K Electrophoretic deposition %K Carbon %K coating %K Al2O3 nanoparticle %R %X in the present study, electrophoretic deposition (EPD) was used to obtain dense and crack-free layers of Al2O3 on carbon substrate. Microstructural study of the obtained layers by scanning electron (SEM) and optical microscopy (OM) approved that crack-free layers can be obtained by EPD technique. According to obtained results, isopropanol is a suitable media to obtian compact layers which is attributed to unique properties of this media. The crack- free layers were obtained using multi-step electrophretic depostion while using continous EPD process led to the deposition of severly cracked layers. It seems that cracking behaviour of electrophoretically deposited films depends on drying conditions. %U https://www.ije.ir/article_72067_03ac7abc01b23239c28568ecf728ee4b.pdf