Preparation of anodized aluminium oxide at high temperatures using low purity aluminium (Al6082)

Kozhukhova, A.E.; Preez, S.P. du; Bessarabov, Dmitri

doi:10.1016/j.surfcoat.2019.124970

Cited by 29 publications

(20 citation statements)

References 66 publications

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“…Firstly, the surface of the aluminum should be degreased in organic solvents, such as ethanol, acetone or carbon tetrachloride, to remove organic impurities and improve electrolyte wetting. If a special surface appearance (e.g., high gloss) is required, then mechanical or chemical polishing are used [25].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Various Forms of Aluminum 6082 on the Mechanical Properties, Microstructure and Surface Modification of the Profile after Extrusion Process

et al. 2021

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This article presents a method of reusing aluminum scrap from alloy 6082 using the hot extrusion process. Aluminum chips from milling and turning processes, having different sizes and morphologies, were cold pressed into briquettes prior to hot pressing at 400 °C at a ram speed of 2 mm/s. The study of mechanical properties combined with observations of the microstructures, as well as tests of density, hardness and electrical conductivity were carried out. On the basis of the results, the possibility of using the plastic consolidation method and obtaining materials with similar to a solid ingot mechanical properties, density and electrical conductivity was proven. The possibility of modifying the surface of consolidated aluminum scrap was tested in processes examples: polishing, anodizing and coloring. For this purpose, a number of analyses and tests were carried out: comparison of colors on color histograms, roughness determination, SEM and chemical composition analysis. It has been proven there are differences in the surface treatment of the solid material and that of scrap consolidation, and as such, these differences may significantly affect the final quality.

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Section: Introductionmentioning

confidence: 99%

“…In study [25], a two-step anodizing process was performed, resulting in nanoporous anodized aluminum oxide layers using 6082 aluminum alloy. The aim of this study was to choose appropriate anodizing parameters, such as voltage and temperature, using 0.4 M oxalic acid.…”

Section: Introductionmentioning

confidence: 99%

Effect of Various Forms of Aluminum 6082 on the Mechanical Properties, Microstructure and Surface Modification of the Profile after Extrusion Process

et al. 2021

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“…Before anodizing, it is necessary to pre-treat or clean the surface of aluminum appropriately. The typical types of surface treatment for aluminum alloys before anodizing are degreasing [1], [2], electroplating [3], [4], mechanical treatment [5], chemical brightening [6]. The article presents the method of preparing samples with an oxide layer intended for tribological tests on the T17 stand, manufactured at the Institute of Materials Science, University of Silesia.…”

Section: Introductionmentioning

confidence: 99%

Sample Preparation Methodology of the AL2O3 Surface Layers for Self-Lubricating Sliding Pair

Korzekwa¹,

Bara²,

Karpisz³

2021

14th WCCM-ECCOMAS Congress

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The article discusses the process of preparing samples with an anodic Al2O3 layer for tribological tests in the combination of sliding, reciprocating on the T17 tester. The method of cutting, grinding, drilling, threading, gluing, etching, and anodizing samples used in laboratory conditions was presented. As shown in the article, the number of factors influencing the surface quality of the oxide layer produced in terms of tribological associations is significant; therefore, the appropriate sample preparation methodology is so important.

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“…These approximations reduce the total anodization time, producing templates with pore arrangements that are far less ordered than those obtained using two-step anodization. Low purity aluminium was also explored as an alternative starting material for the synthesis of AAO templates [ 38 , 39 , 40 , 41 ]. In this case, low order was achieved, even after a two-anodization process, due to the low quality of the starting material.…”

Section: Introductionmentioning

confidence: 99%

Scaling Up the Production of Electrodeposited Nanowires: A Roadmap towards Applications

et al. 2021

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The use of metallic nanowires is mostly reduced to scientific areas where a small quantity of nanostructures are needed. In order to broaden the applicability of these nanomaterials, it is necessary to establish novel synthesis protocols that provide a larger amount of nanowires than the conventional laboratory fabrication processes at a more competitive cost. In this work, we propose several modifications to the conventional electrochemical synthesis of nanowires in order to increase the production with considerably reduced production time and cost. To that end, we use a soft anodization procedure of recycled aluminum at room temperature to produce the alumina templates, followed by galvanostatic growth of CoFe nanowires. We studied their morphology, composition and magnetic configuration, and found that their properties are very similar to those obtained by conventional methods.

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Preparation of anodized aluminium oxide at high temperatures using low purity aluminium (Al6082)

Cited by 29 publications

References 66 publications

Effect of Various Forms of Aluminum 6082 on the Mechanical Properties, Microstructure and Surface Modification of the Profile after Extrusion Process

Effect of Various Forms of Aluminum 6082 on the Mechanical Properties, Microstructure and Surface Modification of the Profile after Extrusion Process

Sample Preparation Methodology of the AL2O3 Surface Layers for Self-Lubricating Sliding Pair

Scaling Up the Production of Electrodeposited Nanowires: A Roadmap towards Applications

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