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
Citations
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Journal ArticleDOI
Nanoscale pore formation dynamics during aluminum anodization.
TL;DR: A theoretical analysis of nanoscale pore formation during anodization reveals its fundamental instability mechanism to be a field focusing phenomenon when perturbations on the minima of the two oxide interfaces are in phase.
Journal ArticleDOI
Anodization of Gold in Oxalate Solution To Form a Nanoporous Black Film
Kazuyuki Nishio,Hideki Masuda +1 more
Journal ArticleDOI
Mechanical instability and pore generation in anodic alumina
S.J. Garcia-Vergara,L. Iglesias-Rubianes,C. E. Blanco-Pinzon,Peter Skeldon,George Thompson,P Campestrini +5 more
TL;DR: In this article, the authors examined the mechanism of pore formation in anodic films on aluminium using transmission and scanning electron microscopies, and determined the compositions of films and the efficiencies of anodizing.
Journal ArticleDOI
Oxygen bubble mould effect: serrated nanopore formation and porous alumina growth
TL;DR: In this paper, a growth model for the formation mechanism of porous anodic alumina (PAA) films is proposed, which emphasizes the close relationship between pore generation and oxygen evolution.
Journal ArticleDOI
Wafer-Scale Near-Perfect Ordered Porous Alumina on Substrates by Step and Flash Imprint Lithography
TL;DR: A step and flash imprint lithography (SFIL)-based method to fabricate a near-perfect ordered AAO with square and hexagonal lattice configuration on silicon substrate over 4 in.
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