Effect of KOH to Na2SiO3 Ratio on Microstructure and Hardness of Plasma Electrolytic Oxidation Coatings on AA 6061 Alloy

Sharma, Ashutosh; Jang, Yeonsoo; Jung, Jae Pil

doi:10.1007/s11665-017-2916-z

Cited by 20 publications

(10 citation statements)

References 46 publications

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“…The PEO variables control the properties of the PEO-treated surfaces. Some of them are dielectric medium or electrolyte composition and their concentration, electrical parameters during oxidation, oxidation time, added additives, and their concentration and temperature during oxidation [42][43][44]. In recent times, PEO treated surfaces have been popular due to the convenience of the process and characteristics of the coatings obtained.…”

Section: Plasma Electrolytic Oxidation (Peo)mentioning

confidence: 99%

“…Their research indicates that sodium hexametaphosphate can alter the microhardness, morphology, and thickness of the PEO coatings. Sharma et al [43] used KOH containing Na2SiO3 as the electrolyte. They used various ratios of KOH and Na2SiO3 to explore the effect of concentration on the PEO oxide layer grown on the 6061 Al alloy, its morphology, and properties.…”

Section: Peo Of 6061 Al Alloysmentioning

confidence: 99%

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Surface Modification of 6xxx Series Aluminum Alloys

et al. 2022

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Due to their superior mechanical properties, formability, corrosion resistance, and lightweight nature, 6xxx series aluminum (Al) alloys are considered as a promising structural material. Nevertheless, the successful application of these materials depends on their response to the external environment. Recently, designers considered the surface properties an equally important aspect of the component design. Due to this concern, these alloys are subjected to varieties of surface modification methodologies. Many methodologies are explored to modify the 6xxx series Al alloys surfaces effectively. These methods are anodizing, plasma electrolytic oxidation (PEO), cladding, friction stir processing, friction surfacing, melting, alloying, and resolidification using high energy beams, etc. This review work discusses some of these methods, recent research activities on them, important process variables, and their role on the final properties of the surfaces.

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Section: Plasma Electrolytic Oxidation (Peo)mentioning

confidence: 99%

Section: Peo Of 6061 Al Alloysmentioning

confidence: 99%

Surface Modification of 6xxx Series Aluminum Alloys

et al. 2022

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“…To create various nanostructures, many synthesis techniques have been used, such as evaporation/plasma-based methods, hydrothermal/solvothermal methods, electrospinning, sol–gel, and template-assisted synthesis. − Different synthesis techniques can be used to produce various morphologies and nanostructures. Thin film nanostructures include NPs, nanowires, nanorods, nanoplates, nanospheres, nanotubes, nanofibers, nanoneedles, nanoribbons, and nanoflowers .…”

Section: Introductionmentioning

confidence: 99%

A Review on Chemiresistive Hybrid Zinc Oxide and Nanocomposites for Gas Sensing

Yadav

Kumar

Chaudhary

et al. 2023

Ind. Eng. Chem. Res.

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Chemiresistors have been widely employed in monitoring toxic fumes, gases, and environmental pollutants. Among a plethora of metal oxide semiconductors (MOX) used for preparing chemiresistors, zinc oxide is the topmost candidate. ZnO-based gas sensors are cost-effective, nontoxic, stable, and easily prepared by wet chemical facile approaches. ZnO nanostructures are the most promising candidates for leakage detection of toxic gases with reliable performance. In this regard, several investigations have been carried out to increase sensor response at room temperature (RT). Current advances in ZnO nanostructures-based thin films are the subject of this review paper. The review begins with a basic survey of ZnO thin films for gas sensors focusing on how the structure and properties of ZnO affect the gas response mechanisms, various factors and processing methods of ZnO nanostructures, and possible ways to enhance the gas response characteristics of ZnO-based sensors.

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“…The composition of the PEO coatings consists not only of the substrate oxides, but also of other oxides containing elements present in the electrolytes ( Ref 9). The mechanism of formation of PEO coating and the influence of process parameters are well studied topics in the literature, focusing, for example, on light alloys (Ref [10][11][12][13][14] and steels (Ref 15). Thanks to its features, PEO coating can be employed in several applications where high mechanical and corrosion properties are required (Ref 16,17).…”

Section: Introductionmentioning

confidence: 99%

Photoluminescent Plasma Electrolytic Oxidation Coatings Containing YAG: Ce Produced on 1050 Aluminum Alloy

Settimi

Pezzato

Longato

et al. 2022

J. of Materi Eng and Perform

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In this work, we investigated the possible incorporation of YAG (yttrium aluminum garnet)-Ce particles into plasma electrolytic oxidation (PEO) coatings on 1050AA (aluminum alloy) in order to endow the surface with photoluminescent properties. Different treatment times and current modes (direct or pulsed) were tested as PEO process parameters using as electrolyte a silicates-containing solution. The microstructure of the samples was characterized by SEM and XRD measurements, the corrosion properties were determined by EIS tests, whereas the photoluminescence was evaluated with a proper spectrometer. The concentration of the YAG-Ce particles incorporated in the PEO coating was strongly influenced by the current mode, and in particular, it was higher with pulsed current mode. A higher content of YAG-Ce particles results in a better corrosion resistance and photoluminescent effect. PEO process in pulsed unipolar mode using an electrolyte containing YAG-Ce particles resulted an effective way to produce samples of 1050AA with a surface characterized by photoluminescent properties.

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Effect of KOH to Na2SiO3 Ratio on Microstructure and Hardness of Plasma Electrolytic Oxidation Coatings on AA 6061 Alloy

Cited by 20 publications

References 46 publications

Surface Modification of 6xxx Series Aluminum Alloys

Surface Modification of 6xxx Series Aluminum Alloys

A Review on Chemiresistive Hybrid Zinc Oxide and Nanocomposites for Gas Sensing

Photoluminescent Plasma Electrolytic Oxidation Coatings Containing YAG: Ce Produced on 1050 Aluminum Alloy

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