Abstract
In this study, we have proposed a technique to fabricate a thin film of smectite using EPD, which is a simple ceramic processing carried out under an ambient condition. The smectite is an exfoliated flat particle which has a negative charge in a basic aqueous solution. With applying a DC voltage between two electrodes in the solution, the smectite particles move to the positive electrode, on which a layer is eventually formed. The surface and cross-section of stacked smectite layers were observed and characterized by SEM with EDS. The thickness of the layers increased with increasing the applied voltage.
