Nano Archive

Application of electrophoretic deposition for inner surface coating of porous ceramic tubes

Kreethawate , L. and Larpkiattaworn , S. and Jiemsirilers , S. and Besra , L. and Uchikoshi, T. (2010) Application of electrophoretic deposition for inner surface coating of porous ceramic tubes. Surface and Coatings Technology . (In Press)

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Abstract

The direct coating of a nano-porous alumina layer on the inner surface of micro-porous alumina tubes was performed by electrophoretic deposition (EPD). A thin layer of polypyrrole (Ppy) was synthesized on the inside wall of the porous tubes by the chemical polymerization of pyrrole (Py) to give the wall electric conduction for the EPD electrode. The bimodal suspension of alumina powders with 0.6 μm and 30 nm average particle sizes was selected to control the nano-porous structure. The thickness of the coatings layer was controlled by altering the applied voltage and deposition time. The interfacial connection of the coated layer and the substrate was observed by SEM before and after sintering. The pore size of the coated layer was characterized by its pore size distribution.

Item Type:Article
Uncontrolled Keywords:Electrophoretic deposition; Porous ceramic; Alumina; Tube; Polypyrrole
Subjects:Material Science > Nanofabrication processes and tools
ID Code:9633
Deposited By:CSMNT
Deposited On:24 Sep 2010 10:28
Last Modified:24 Sep 2010 10:28

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