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
Elektronenmikroskopische Darstellung elektrolytischer Oxidschichten auf AA2214
TL;DR: In this paper, anodisierspannung auf die Porengrose is discussed, and a signifikante Gradierung der Verdichtung is found in the Oxidschichtdicke.
Journal ArticleDOI
Determination of the dye penetration rate in porous aluminum oxide using Raman spectroscopy
Tadas Matijošius,Svajus Asadauskas,G. Bikulčius,Algirdas Selskis,Sigitas Jankauskas,Jevgenij Višniakov,Ilja Ignatjev +6 more
Journal ArticleDOI
Cell activity on type 316L stainless steel with self-organized nanopores formed by anodic polarization
Sayaka Miyabe,Takashi Suehiro,Yushi Fujinaga,Hiroaki Tsuchiya,Sachiko Hiromoto,Shinji Fujimoto +5 more
TL;DR: In this paper, the authors evaluated the osseoconductivity of Type 316L stainless steel with self-organized nanopores of three different average diameters (26, 90, and 177 nm), formed by anodic polarization.
Abnormal Anodic Aluminum Oxide Formation in Confined Structures for Lateral Pore Arrays
Jihun Oh,Carl V. Thompson +1 more
TL;DR: In this paper, abnormal behavior in anodic oxidation of Al in mechanically confined structures for formation of horizontal nanoporous anodic alumina oxide (H-AAO) was reported, where periodic dendrite inner pore structures formed, the growth rate was suppressed to 5% of its value during bulk anodization under the same conditions, and a steady state was never reached.
Dissertation
Effect of sulphate impurity in chromic acid anodizing of aluminium and aluminium alloy
TL;DR: The effect of sulphate impurity in chromic acid anodizing of aluminium and aluminium alloy was investigated in this paper, where the nucleation and growth of pores in anodic films formed on aluminium and AA 2024 alloy were investigated.
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