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
Theoretical derivation of ionic current and electronic current and comparison between fitting curves and measured curves
TL;DR: In this article, the theoretical expressions for time dependent ionic current and electronic current are derived to deduce the metal anodizing process, and the morphology transition between porous and barrier anodic oxide films is determined by the magnitude of electronic current within the oxide.
Journal ArticleDOI
Some reflections on contemporary views of theories of adhesion
TL;DR: In this article, the authors reviewed the literature on mechanical interlocking and adsorption interactions, the two main mechanisms postulated to account for adhesive bonding, and showed that interpenetration of adhesive and adherend is important in obtaining optimum adhesion in a wide range of applications.
Journal ArticleDOI
Tracer study of pore initiation in anodic alumina formed in phosphoric acid.
A. Baron-Wiechec,M.G. Burke,Teruo Hashimoto,H. Liu,Peter Skeldon,George Thompson,Hiroki Habazaki,J.-J. Ganem,Ian Vickridge +8 more
TL;DR: In this paper, the authors used arsenic species as tracers in a study of pore initiation in anodic films that were formed at constant potentials on aluminium in phosphoric acid.
Nanoporous alumina : fabrication, structure, properties and applications
Dusan Losic,Abel Santos +1 more
TL;DR: In this article, theoretical pore growth models for Nanoporous Alumina are presented, along with a detailed description of the internal pore structure of Anodic Aluminum Oxide (AAO).
Journal ArticleDOI
Toward self-assembled ferroelectric random access memories: hard-wired switching capacitor arrays with almost Tb/in.(2) densities.
Paul R. Evans,Xinhau Zhu,P. Baxter,Mark McMillen,John McPhillips,Finlay D. Morrison,James F. Scott,Robert Pollard,Robert M. Bowman,J. Marty Gregg +9 more
TL;DR: This report reports on the successful fabrication of arrays of switchable nanocapacitors made by harnessing the self-assembly of materials, an embryonic form of the highest density hard-wired FRAM capacitor array reported to date and compares favorably with atomic force microscopy read-write densities.
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