Structural colour in 3D-AAO metamaterials depends on the period between transversal channels, while hue is related with shape (ovality) of which waveform and etching time.

In this study, the effects of nanoporous structure anodic films on adhesive strength between aluminum alloys and polyamide resin were systematically investigated. Alumina with different dimensions (such as pore density, diameter, depth) formed A6063 by various anodizing conditions to compare anchoring effect. The at interface adherend (anodized aluminum) (thermoplastic elastomer resin) was eval...

Scandium (Sc) is known to be one of the most effective alloying elements aluminum alloys. The only drawback its high price, but that could change quickly due promising results recent research on extraction. However, data how it affects anodic oxidation are very scarce. In this research, we analyzed a micro-addition Sc AlMg alloy growth mechanism and properties protective aluminium oxide layer d...

The emergence and spreading of the SARS-CoV-2 pandemic has forced focus attention on a significant issue: realization antimicrobial surfaces for public spaces, which do not require extensive use disinfectants. Silver represents one most used elements in this context, thanks to its excellent biocidal performance. This work describes simple method anodized aluminum layers, whose features are ensu...

nanofluid is a new class of heat transfer fluids engineered by dispersing metallic or non-metallic nanoparticles with a typical size of less than 100 nm in the conventional heat transfer fluids.this article aims to investigate the overall and convection heat transfer coefficient and nusselt number of al2o3-water nanofluid flowing in a horizontal double pipe heat exchanger under turbulent flow (...

We demonstrate synthesis of Ni/CuOx/Ni nanowires (NWs) by electrochemical deposition on anodized aluminum oxide (AAO) membranes. AAO with pore diameter of ~70 nm and pore length of ~50 μm was used as the template for synthesis of NWs. After deposition of Au as the seed layer, NWs with a structure of Ni/CuOx/Ni were grown with a length of ~12 μm. The lengths of 1(st) Ni, CuOx, and 2(nd) Ni were ...

Textured ferromagnetic Fe nanowire arrays were electrodeposited using a rectangular-pulsed potential deposition technique into anodized aluminum oxide nanochannels. During the electrodeposition of Fe nanowire arrays at a cathodic potential of - 1.2 V, the growth rate of the nanowires was ca. 200 nm s-1. The aspect ratio of Fe nanowires with a diameter of 30 ± 5 nm reached ca. 2000. The long axi...

Due to the broad applications of porous alumina nanostructures, research on fabrication of anodized aluminum oxide (AAO) with nanoporous structure has triggered enormous attention. While fabrication of highly ordered nanoporous AAO with tunable geometric features has been widely reported, it is known that its growth rate can be easily affected by the fluctuation of process conditions such as ac...

We have presented a mechanism to explain why the resulting oxide morphology becomes a porous or a tubular nanostructure when a zircaloy is electrochemically anodized. A porous zirconium oxide nanostructure is always formed at an initial anodization stage, but the degree of interpore dissolution determines whether the final morphology is nanoporous or nanotubular. The interpore dissolution rate ...