Detailed Observation of Cell Junction in Anodic Porous Alumina with Square Cells
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概要
- 論文の詳細を見る
The local structure of a cell junction in anodic porous alumina with square cells was studied by transmission electron microscopy (TEM), field-emission scanning electron microscopy (FE-SEM) and atomic force microscopy (AFM). The initiation of a square lattice pattern, which is different from a normal hexagonal cell arrangement, induced the characteristic growth of a porous structure. The obtained oxide film was formed by a close-packed array of square cells following the initiation. The shape of the pores changed from circular to square corresponding to the transformation of the cell structure at the steady state. The incorporation of unoxidized aluminum into the oxide film and the generation of voids were observed at the fourfold point of the cell junction. The height of the protrusions of the aluminum substrate at the cell junction was considerably larger than that of protrusions formed in naturally occurring anodic porous alumina with hexagonal cells. These specific features were thought to be caused by the inhomogeneous distribution of current at the square pore base.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-09-15
著者
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Ono Sachiko
Department Of Applied Chemistry Faculty Of Engineering Kogakuin University
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Masuda Hideki
Department Of Applied Chemistry Faculty Of Engineering Nagoya Institute Of Technology
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Asoh Hidetaka
Department Of Applied Chemistry Kogakuin University
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Masuda Hideki
Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397, Japan
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Hirose Tomohito
Department of Applied Chemistry, Kogakuin University, 1-24-2 Nishi-shinjuku, Shinjuku-ku, Tokyo 163-8677, Japan
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Takatori Ikuo
Department of Applied Chemistry, Kogakuin University, 1-24-2 Nishi-shinjuku, Shinjuku-ku, Tokyo 163-8677, Japan
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