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
Light scattering by liquid crystals in columnar micropores
TL;DR: In this paper, the optical transmittance of anodic alumina films which contain nematic liquid crystals in columnar pores was studied. But the authors did not consider the effect of the refractive index mismatch between the liquid crystals and alumina.
Book ChapterDOI
Mechanisms of Nanoporous Alumina Formation and Self-organized Growth
Zhiyuan Ling,Yi Li +1 more
TL;DR: In this paper, some fundamental scientific topics toward formation mechanisms of nanoporous alumina will be discussed in detail, such as the intrinsic mechanisms of mild and hard anodization processes, and the critical condition between MA and HA processes.
Journal ArticleDOI
A Modified Quantitative Method for Regularity Evaluation of Porous AAO and Related Intrinsic Mechanisms
Proceedings ArticleDOI
Anodic nano-porous humidity sensing thin films for the commercial and industrial applications
TL;DR: In this paper, a method to make anodic nano-porous humidity sensors using standard integrated circuit processes is presented, which is a replacement for polyamide based thin film humidity sensors.
Book ChapterDOI
Optical Properties and Solar Selectivity of Metal-Insulator Composites
G. A. Niklasson,C. G. Granqvist +1 more
TL;DR: In this article, the authors derived a number of theoretical expressions for the average dielectric permeability of composite materials from a model which treats scattering from random unit cells chosen so as to represent the basic microstructure.
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