Effect of polycaprolactone coating on the corrosion and biological characteristics of plasma electrolytic oxidised ZM21 magnesium alloy

Nasiruddin, U.; Shishir, R.; Manojkumar, P.; Lokeshkumar, E.; Premchand, C.; Ponnilavan, V.; Парфенов, Е.В.; Krishna, L. Rama; Rameshbabu, N.

doi:10.1016/j.surfcoat.2023.129915

Cited by 8 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lately, PEO has become increasingly popular as a method for producing multifunctional coatings and improving the surface characteristics of magnesium and its alloys [10][11][12][13][14][15][16][17][18]. Some studies have shown that oxide coatings formed on magnesium alloys can be used in photocatalytic applications [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

MgAl Oxide Coatings Modified with CeO2 Particles Formed by Plasma Electrolytic Oxidation of AZ31 Magnesium Alloy: Photoluminescent and Photocatalytic Properties

Stojadinović,

Radić

2024

Metals

View full text Add to dashboard Cite

MgAl oxide coatings composed of MgO and MgAl2O4 phases were doped with CeO2 particles via plasma electrolytic oxidation (PEO) of AZ31 magnesium alloy in a 5 g/L NaAlO2 water solution. Subsequently, particles of CeO2 up to 8 g/L were added. Extensive investigations were conducted to examine the morphology, the chemical and phase compositions, and, most importantly, the photoluminescent (PL) properties and photocatalytic activity (PA) during the photodegradation of methyl orange. The number of CeO2 particles incorporated into MgAl oxide coatings depends on the concentration of CeO2 particles in the aluminate electrolyte. However, the CeO2 particles do not significantly affect the thickness, phase structure, or surface morphology of the coatings. The PL emission spectrum of MgAl oxide coatings is divided into two bands: one in the 350–600 nm range related to structural defects in MgO, and another much more intense band in the 600–775 nm range attributed to the F+ centres in MgAl2O4. The incorporated CeO2 particles do not have a significant effect on the PL intensity of the band in the red spectral region, but the PL intensity of the first band increases with the concentration of CeO2 particles. The PA of MgAl/CeO2 oxide coatings is higher than that of pure MgAl oxide coatings. The MgAl/CeO2 oxide coating developed in aluminate electrolyte with a concentration of 2 g/L CeO2 particles exhibited the highest PA. The MgAl/CeO2 oxide coatings remained chemically and physically stable across multiple cycles, indicating their potential for applications.

show abstract

Section: Introductionmentioning

confidence: 99%

MgAl Oxide Coatings Modified with CeO2 Particles Formed by Plasma Electrolytic Oxidation of AZ31 Magnesium Alloy: Photoluminescent and Photocatalytic Properties

Stojadinović,

Radić

2024

Metals

View full text Add to dashboard Cite

show abstract

“…Surface treatments for biodegradable Mg alloys create a physical barrier that impedes contact between corrosive ions and Mg alloys, which also has a significant impact on the coating healing performance, cell adhesion, and osteogenesis . To date, numerous coating technologies have been applied to improve its corrosion resistance and biocompatibility, such as microarc oxidation coatings, chemical conversion coatings, hydrothermal coating, electrodeposition, and polymer coatings, etc. − Among these coating methods, the degradable polymer coatings have attracted considerable interest due to their potential to achieve dual goals of coating degradation and corrosion control, including poly(lactic acid) (PLA), polycaprolactone, poly(trimethylene carbonate), and poly(glycolide lactide). − Nevertheless, some inherent defects (micropores and cracks) are created during the coating formation process and working in the physiological environment, which provides stable penetration channels for corrosive ions. The surface compactness is inevitably damaged when working in a complex corrosive environment with a long impregnation period, ultimately leading to coating failure.…”

Section: Introductionmentioning

confidence: 99%

Chloride Ions-Responsive Intelligent Coatings for the Active Protection of Degradable Biomedical Mg Alloys

Chen,

Gong,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

“…Technologies for plasma-electrolytic treatment have found applications in applying protective ceramic coatings onto the surfaces of metals of the valve group, polishing metal surfaces, and forming hardened diffusion layers on steel and titanium alloys [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Plasma–Electrolytic Nitrocarburizing of a Medium Carbon Steel Surface on Friction and Wear in Pair with Tin–Lead Bronze

Borisov,

Mukhacheva,

Kusmanov

et al. 2023

Metals

View full text Add to dashboard Cite

The possibility of increasing the durability of steel pins working against bronze bushings through plasma–electrolytic nitrocarburizing of the surface of medium carbon steel is shown. The phase composition, microhardness, morphology, and surface roughness were studied. Tribological tests were carried out under dry friction conditions according to the shaft-pad scheme. It has been established that plasma–electrolytic nitrocarburizing of the surface of medium carbon steel at a temperature of 700 °C for 5 min leads to a decrease in the friction coefficient by 2.3 times, the weight wear of steel by 24.9 times, and the wear of the bronze counterbody by 5.9 times. At the same time, the contact stiffness increases by 2.6 times. Type of wear: wear with dry friction and plastic contact. The changes in tribological characteristics are associated with the high hardness of the hardened steel surface combined with the effect of dispersed nitrides and iron carbonitrides.

show abstract

Effect of polycaprolactone coating on the corrosion and biological characteristics of plasma electrolytic oxidised ZM21 magnesium alloy

Cited by 8 publications

References 37 publications

MgAl Oxide Coatings Modified with CeO2 Particles Formed by Plasma Electrolytic Oxidation of AZ31 Magnesium Alloy: Photoluminescent and Photocatalytic Properties

MgAl Oxide Coatings Modified with CeO2 Particles Formed by Plasma Electrolytic Oxidation of AZ31 Magnesium Alloy: Photoluminescent and Photocatalytic Properties

Chloride Ions-Responsive Intelligent Coatings for the Active Protection of Degradable Biomedical Mg Alloys

The Effect of Plasma–Electrolytic Nitrocarburizing of a Medium Carbon Steel Surface on Friction and Wear in Pair with Tin–Lead Bronze

Contact Info

Product

Resources

About