The Characteristic of Inner Surface Coating on Porous Al2O3 Tube by Electrophoretic Deposition
The nano-porous Al2O3 layer was performed onto inner surface of micro- porous Al2O3 tube by using electrophoretic deposition (EPD). Initially, Polypyrrole (Ppy) was applied on inner wall of tube to make conductive surface. The Al2O3 deposition was carried out in Al2O3 suspension with 5 wt % solid content in ethanol medium system using various applied voltages. Thickness of the deposited layer depends on applied voltages, after sintering at 1400oC the morphology of the deposited layer was investigated by FE-SEM. The good deposited surface without cracks and peeling has been prepared under applied voltage condition of 10 V.
John T.Harry Pearce, Chi-Na Benyajati, Somboon Otarawanna, Sorachon Yoriya, Supaporn Wansom, Thanasat Sooksimuang, Doungporn Sirikittikul, Naruporn Monmaturapoj, Manida Tongroon and Jitti Mungkalasiri
L. Kreethawate et al., "The Characteristic of Inner Surface Coating on Porous Al2O3 Tube by Electrophoretic Deposition", Key Engineering Materials, Vol. 545, pp. 19-23, 2013