Polyvinyl alcohol/polyethylene glycol composite hydrogel parceling on aluminum: Toward more robust micro-arc oxidation coatings

Jia, Endong; Lu, Hailin; Xu, Guowen; Xue, Bowen; Wang, Changkai; Chai, Guiquan; Yang, Huiyun; Li, Jianhui

doi:10.1016/j.ceramint.2022.12.184

Cited by 18 publications

(4 citation statements)

References 46 publications

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“…The results showed that a lower friction coefficient can be achieved with the coating prepared in PVA-PEG hydrogel. In addition, the PVA-PEG hydrogel adhered to the surface of the coating, filled the micropores and acted as a lubricant, thus, can improving the tribological performance (Jia et al, 2023). Many experiments and studies have shown that: PVA is an excellent water-soluble polymer with good mechanical strength, film-forming ability, biocompatibility, biodegradability and chemical stability (Meera et al, 2023;Meera and Ramesan, 2023a;Meera and Ramesan, 2023b;Ramesan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Tribological properties of aluminum alloy coated with graphene oxide/polyvinyl alcohol composites after micro-arc oxidation

Sun,

Fan,

Yang

et al. 2024

ILT

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Purpose Aluminum alloy is considered an ideal material in aerospace, automobile and other fields because of its lightweight, high specific strength and easy processing. However, low hardness and strength of the surface of aluminum alloys are the main factors that limit their applications. The purpose of this study is to obtain a composite coating with high hardness and lubricating properties by applying GO–PVA over MAO coating. Design/methodology/approach A pulsed bipolar power supply was used as power supply to prepare the micro-arc oxidation (MAO) coating on 6061 aluminum sample. Then a graphene oxide-polyvinyl alcohol (GO–PVA) composite coating was prepared on MAO coating for subsequent experiments. Samples were characterized by Fourier infrared spectroscopy, X-ray diffraction, Raman spectroscopy and thermogravimetric analysis. The friction test is carried out by the relative movement of the copper ball and the aluminum disk on the friction tester. Findings Results showed that the friction coefficient of MAO samples was reduced by 80% after treated with GO–PVA composite film. Originality/value This research has made a certain contribution to the surface hardness and tribological issues involved in the lightweight design of aluminum alloys. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-12-2023-0427/

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Section: Introductionmentioning

confidence: 99%

“…The results showed that a lower friction coefficient can be achieved with the coating prepared in PVA–PEG hydrogel. In addition, the PVA–PEG hydrogel adhered to the surface of the coating, filled the micropores and acted as a lubricant, thus, can improving the tribological performance (Jia et al. , 2023).…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of aluminum alloy coated with graphene oxide/polyvinyl alcohol composites after micro-arc oxidation

Sun,

Fan,

Yang

et al. 2024

ILT

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“…5 Under the action of high-voltage and high-frequency pulse arc discharge, metal ions and oxide ions in the electrolyte form an oxide layer on the metal surface. 6 The thickness and morphology of the oxide layer can be adjusted by controlling processing parameters such as voltage, current density, electrolyte type, and concentration. 7,8 MAO technology can be used for surface treatment of various metal materials, such as aluminum alloys, 9 magnesium alloys, 10 titanium alloys, 11 etc.…”

Section: Introductionmentioning

confidence: 99%

“…During the MAO process, the valve metal acts as the anode and is submerged in electrolyte, while the cathode is usually stainless steel 5 . Under the action of high‐voltage and high‐frequency pulse arc discharge, metal ions and oxide ions in the electrolyte form an oxide layer on the metal surface 6 . The thickness and morphology of the oxide layer can be adjusted by controlling processing parameters such as voltage, current density, electrolyte type, and concentration 7,8 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of wear‐resistant ceramic coating by dynamically controlling the resistance during MAO

Wang,

Xu,

Jia

et al. 2023

Int J Applied Ceramic Tech

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Micro arc oxidation (MAO) is a surface treatment technology that typically involves immersing the valve metal in an electrolyte to generate a ceramic coating for improved surface characteristics. This paper proposes a novel MAO g48 the need for electrolyte immersion. The MAO power supply's positive electrode is connected to the valve metal as the anode, while the negative electrode is connected to a stainless‐steel wire in the electrolyte circulation system. The distance between the cathode and anode is dynamically adjusted using a mechanical arm. Through advanced techniques like X‐ray diffraction and X‐ray photoelectron spectroscopy, successful ceramic coatings comprising α‐Al2O3 and γ‐Al2O3 phases on aluminum substrates were achieved. Tribological experiments demonstrated that coatings prepared with a cathode‐anode distance of 1.0 cm exhibited a scratch width of approximately 286.160 μm, while a distance of 3.0 cm resulted in approximately 1736.80 μm. This highlights the significant impact of the cathode‐anode distance on the wear resistance of the plasma electrolytic oxidation ceramic coating, with optimal performance observed at 1.0 cm. Utilizing a robotic arm to control the cathode movement enables effective surface treatment of large workpieces and targeted regions, addressing practical challenges in MAO applications.

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Preparation and tribological properties of MAO-PVA/PTFE self-lubricating composite coating on aluminum alloy surface

Chen,

Bai,

et al. 2023

J Coat Technol Res

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Polyvinyl alcohol/polyethylene glycol composite hydrogel parceling on aluminum: Toward more robust micro-arc oxidation coatings

Cited by 18 publications

References 46 publications

Tribological properties of aluminum alloy coated with graphene oxide/polyvinyl alcohol composites after micro-arc oxidation

Tribological properties of aluminum alloy coated with graphene oxide/polyvinyl alcohol composites after micro-arc oxidation

Preparation of wear‐resistant ceramic coating by dynamically controlling the resistance during MAO

Preparation and tribological properties of MAO-PVA/PTFE self-lubricating composite coating on aluminum alloy surface

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