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Journal ArticleDOI

Structural Features of Oxide Coatings on Aluminum

F. Keller, +2 more
- 01 Sep 1953 - 
- Vol. 100, Iss: 9, pp 411-419
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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.

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Intrinsic Au Decoration of Growing TiO2 Nanotubes and Formation of a High‐Efficiency Photocatalyst for H2 Production

TL;DR: Electrochemical anodization of low-concentration TiAu alloys in a fluoride electrolyte leads to self-organized TiO2 nanotubes that show a controllable, regular in situ decoration with elemental Au nanoclusters of ≈5 nm in diameter.
Journal ArticleDOI

Micropolarizer made of the anodized alumina film

TL;DR: In this paper, a novel micropolarizer has been fabricated from alumina and nickel by means of anodization and electroplating techniques, which achieved an extinction ratio larger than 30 dB at the wavelength of 1.3 μm.
Journal ArticleDOI

Revisiting anodic alumina templates: from fabrication to applications

TL;DR: A review of the latest developments related to nanoporous anodic porous alumina can be found in this paper, which provides a solid and thorough reference for all interested experts, both in academia and industry, on these nanostructured and highly useful structures.
Journal ArticleDOI

Anodization parameters influencing the morphology and electrical properties of TiO2 nanotubes for living cell interfacing and investigations

TL;DR: This paper focuses on the fabrication of TiO2 nanotubes through anodization process on both pure titanium and titanium alloys substrates to exploit the biocompatibility and electrical conductivity aspects of the titanium.
Journal ArticleDOI

Electrodeposition of polypyrrole layers on aluminium from aqueous electrolytes

TL;DR: In this paper, a screening of twenty aqueous electrolytes for a film-forming electropolymerization of pyrrole with Al was performed, and a sandwich structure Al/Al2O3/PPy represented a condenser with an unusual composite dielectric with the electronically conducting "plates" Al and PPy.
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