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
Citations
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Journal ArticleDOI
Study of corrosion protection of the composite films on A356 aluminum alloy
TL;DR: In this paper, the corrosion protection effect and corrosion behavior of composite films in 3.5% NaCl solution were studied by electrochemical impedance spectroscopy (EIS), and the test results showed that the rare earth Ce film completely sealed the porous structure of the anodic film, and the composite films composed of anodic and Ce film were compact and integrated.
Journal ArticleDOI
Electrochemical synthesis, characterisation, and preliminary biological evaluation of an anodic aluminium oxide membrane with a pore size of 100 nanometres for a Potential Cell Culture Substrate
TL;DR: In this article, the authors investigate the electrochemical synthesis and characterisation of a nanometre scale porous anodic aluminium oxide (AAO) membranes with a mean pore diameter of 100 nm.
Book ChapterDOI
Theoretical Pore Growth Models for Nanoporous Alumina
Chuan Cheng,A. H. W. Ngan +1 more
TL;DR: In this paper, a review of the development of these models for nanoporous alumina formation is presented, and potential directions for further development are discussed, as well as a recent model proposed by us is also described.
Journal ArticleDOI
Si nanopatterning by reactive ion etching through an on-chip self-assembled porous anodic alumina mask
TL;DR: For the first time, a systematic investigation of the etch rate and process anisotropy was performed on Si nanopatterning through an on-chip self-assembled porous anodic alumina (PAA) masking layer using reactive ion etching based on fluorine chemistry.
Journal ArticleDOI
Destabilisation of nanoporous membranes through GB grooving and grain growth
TL;DR: In this article, a phase field model was used to study the destabilization of cylindrical pores in polycrystalline membranes, and two elementary mechanisms for pore failure were identified.
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