Regularity of nanopores in anodic alumina formed on orientated aluminium single-crystals

被引：30

作者：

Beck, Gesa ^{[1
]}

Bretzler, Rita ^{[1
]}

机构：

[1] Forschungsinst Edelmet & Met Chem, D-73525 Schwabisch Gmund, Germany

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 128卷 / 03期

关键词：

Nanostructure; Microporous material; Interfaces; Oxidation; HEXAGONAL PORE ARRAYS; POROUS ALUMINA; NANOTUBE ARRAYS; NANOWIRES; GROWTH; FILMS; NANOSTRUCTURES; TEMPERATURES; MORPHOLOGY; SUBSTRATE;

D O I：

10.1016/j.matchemphys.2011.03.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

On aluminium single crystals with (1 1 1), (1 1 0) and (1 0 0) orientation, nanoporous alumina layers were formed in a two-step anodization process within sulphuric acid. The pore ordering within the hexagonal arrangement of the nanopores was documented by scanning electron microscopy (SEM), described on the basis of defect thermology and analyzed quantitatively by image evaluation. The best ordering was obtained in nanoporous alumina on (1 0 0) aluminium. We supposed that this is caused by the interface energy term within the driving force for the formation of the nanoporous alumina, since - in contrast to (1 1 1) and (1 1 0) aluminium as substrate - in the case of (1 0 0) aluminium the interface energy is minimised in the waved interface between aluminium and hexagonally arranged nanoporous alumina. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：383 / 387

页数：5

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