On the Growth of Highly Ordered Pores in Anodized Aluminum Oxide

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• 作者：Feiyue Li ; Lan Zhang ; and Robert M. Metzger
• 刊名：Chemistry of Materials
• 出版年：1998
• 出版时间：September 1998
• 年：1998
• 卷：10
• 期：9
• 页码：2470 - 2480
• 全文大小：641K
• 年卷期：v.10,no.9(September 1998)
• ISSN：1520-5002

文摘

It is now established that hexagonally ordered domain structures can be formed in anodicalumina films by repeated anodization and stripping of the porous oxide. We find that thedomain size is a linear function of time and increases with temperature. The pore densityis initially high but decreases with anodizing time, as dominant pores deepen. Very smallpores exist in native oxide in air or nucleate after electropolishing. Pore growth may startwhen the electric field increases at the pore bottoms, and acid dissolves the oxide locally.