Self-organized formation of hexagonal pore arrays in anodic alumina

被引：1220

作者：

Jessensky, O ^{[1
]}

Muller, F ^{[1
]}

Gosele, U ^{[1
]}

机构：

[1] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 10期

关键词：

D O I：

10.1063/1.121004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The conditions for the self-organized formation of ordered hexagonal structures in anodic alumina were investigated for both oxalic and sulfuric acid as an electrolyte. Highly ordered pore arrays were obtained for oxidation in both acids. The size of the ordered domains depends strongly on the anodizing voltage. This effect is correlated with a voltage dependence of the volume expansion of the aluminum during oxidation and the current efficiency for oxide formation. The resulting mechanical stress at the metal/oxide interface is proposed to cause repulsive forces between the neighboring pores which promote the formation of ordered hexagonal pore arrays. (C) 1998 American Institute of Physics. [S0003-6951(98)03510-4].

引用

页码：1173 / 1175

页数：3

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