Journal ArticleDOI
Structural Features of Oxide Coatings on Aluminum
TLDR
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
Behavior of alumina barrier layer in the supporting electrolytes for deposition of nanowired materials
TL;DR: In this article, the authors investigated the behavior of sulfuric and chromic acid alumina templates in typical supporting electrolytes frequently used for alternating current ( ac ) deposition of various nm-scaled materials.
Journal ArticleDOI
The electrical characteristics of porous Al2O3 produced by anodization
R.D. Gould,C.A. Hogarth +1 more
TL;DR: In this paper, the electrical properties of films of Al 2 O 3 prepared by anodizing aluminium substrates were investigated, and a number of different conduction processes were observed, including Schottky-type behaviour, field ion diffusion, space-charge-limited currents, ohmic conductivity and also electroforming and electron emission.
Journal ArticleDOI
The electrical properties of porous anodic Al2O3 films with copper deposited in the pores
TL;DR: The electrical properties of porous anodic Al2O3 films of thickness 10 μm with copper ions deposited inside the pores were investigated in this article, where Schottky emission, tunneling, field ion diffusion, space-charge-limited conduction and ohmic conductivity as well as differential negative resistivity and electron emission were observed.
Journal ArticleDOI
Effect of Surface Treatment on Bio-corrosion in Aluminum Alloy 2024-T3
TL;DR: In this paper, the effect of surface treatment on AA2024-T3 on bio-corrosion in aircraft fuel tanks was studied and the results indicated that pH did not appear to play a crucial role in biofilm formation.
Journal ArticleDOI
The Fabrication of Semiconductor Nanostructure Arrays on a Silicon Substrate Using an Anodized Aluminum Template
TL;DR: A nanogrowth technology for the fabrication of periodic arrays of semiconductor nanostructures on silicon that is currently being investigated for silicon based x-ray detectors is presented in this article.
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