Journal ArticleDOI
Structural Features of Oxide Coatings on Aluminum
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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.read more
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Journal ArticleDOI
Electrochemical impedance studies on pure aluminium in carbonate solution
TL;DR: In this paper, the interface entre an electrode d'aluminium and a solution aqueuse de carbonate de sodium is characterized by des mesures d'impedance en courant alternatif.
Book ChapterDOI
Electrochemical Synthesis of Nanostructured Materials
TL;DR: In this article, the application of electrochemical synthesis techniques, such as electrodeposition and anodic oxidation of metals, from a practical standpoint, is addressed, and some fundamental aspects of electrochemistry are addressed.
Journal ArticleDOI
Direct imprint of nanostructures in metals using porous anodic alumina stamps
TL;DR: A single-step nanoimprint process for direct patterning of metallic nanostructures at room temperature is described and metal nanopits or nanoislands with well defined spacing between 75 and 150 nm can be readily produced using the metal direct imprinting process.
Journal ArticleDOI
Techniques for microscale patterning of zeolite-based thin films
TL;DR: A review of the various patterning techniques for microporous thin film materials, along with their advantages and potential limitations, can be found in this paper, where the authors focus on top-down, bottom-up, and deposition-based approaches that have yielded micro-to nano-scale patterning abilities for zeolite-based materials.
Journal ArticleDOI
Anodic oxidation of aluminium in sulphuric acid monitored by ex-situ and in-situ spectroscopic ellipsometry
TL;DR: In this article, the growth of anodic oxide films on bulk aluminium in sulphuric acid (3 M H 2 SO 4 ) was monitored by means of exsitu and in-situ spectroscopic ellipsometry in the photon energy range 1.5-5.0 eV.
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