Title: Preparation of Anodic Alumina Film with Well Ordered Porous
Abstract: The preparation of porous anodic alumina film is studied with sulfuric acid as electrolyte and the morphology of the film is characterized by field-emission scanning electron microscope(FE-SEM).The experimental results show that a porous anodic alumina film with pore diameter of 25~30 nm can be prepared at 24~26 V.During anodization at different voltages,the formation process of porous anodic alumina film involves three stages: formation of barrier layer,germination and stable growth of porous layer.The current density for the germination and stable growth of porous anodic alumina film increases with the rising of anodizing voltage.The film thickness can reach the maximum value of 38 μm in 6 hours of anodization.X-ray photoelectron spectroscopy(XPS) analysis indicates that the film is mainly composed of amorphous Al_2O_3.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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