Journal ArticleDOI
Structural Features of Oxide Coatings on Aluminum
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In this paper, the structural features of the porous type of anodic oxide coating applied to aluminum have been investigated with the electron microscope, and formulas were given for calculating the cell size and pore volume of these coatings.Abstract:
The structural features of the porous type of anodic oxide coating applied to aluminum have been investigated with the electron microscope. These coatings consist of close‐packed cells of oxide, predominately hexagonal in shape, each of which contains a single pore. Pore size is a function of the electrolyte used and is independent of forming voltage. Wall thickness and barrier thickness are primarily a function of forming voltage and are affected to a minor degree by the electrolyte type. Pertinent dimensions of anodic coatings formed in sulfuric acid, oxalic acid, chromic acid, and phosphoric acid electrolytes are presented, and formulas are given for calculating the cell size and pore volume of these coatings.read more
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Journal ArticleDOI
The nanoporous structure of anodic aluminum oxide fabricated on the Au/Nb/Si substrate
TL;DR: In this article, the anodization behavior of an Al film evaporated on the Au/Nb/Si substrate and demonstrated an effective approach to fabricate the through-hole anodic aluminum oxide (AAO) template on the conducting substrate.
Journal ArticleDOI
Sealing Anodic Oxide Films on Aluminium
TL;DR: The literature on sealing anodic oxide films on aluminium is reviewed in this paper to give an up-to-date survey of the subject and a condensed account of the gene expression.
Journal ArticleDOI
Einfluss von Anionen und Inhibitoren auf die primären wachstumsvorgänge der anodischen Oxidschichten auf Aluminium
TL;DR: In this paper, anfangliche spezifischen Widerstand r der wachsenden Sperrschichten, insofern diese Schichten dicht und ionenleitend bleiben: r = 6 F ϱ M ( d V d t ) 1 i ( i − i e − i r ), (1) ie, Elecktronenstromdichte in A/cm2, ir, Auflosungsstromdickeit (ir)
Journal ArticleDOI
Untersuchung der Struktur und anderer Eigenschaften von durch anodische Oxydation auf Aluminium erzeugten Hartoxydschichten
TL;DR: In this paper, a short survey of the formation mechanism of oxide layers growing upon aluminium during anodic oxidation is presented, along with experimental results obtained in investigating the growth of hard oxide layers in dilute sulfuric acid.
Journal ArticleDOI
Effect of Electrolyte Concentration on the Growth of Porous Anodic Aluminium Oxide (AAO) on Al-Mn Alloys
TL;DR: In this paper, the effect of oxalic acid concentration on pore nucleation process during anodizing was investigated, and it was found that oxal acid influenced the morphologies and regularities of porous AAO formed on aluminum-manganese substrate.
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