The effects of nano- and micro-particles on properties of plasma electrolytic oxidation (PEO) coatings applied on titanium substrates: A review

Fattah‐alhosseini, Arash; Molaei, Maryam; Babaei, Kazem

doi:10.1016/j.surfin.2020.100659

Cited by 74 publications

(34 citation statements)

References 106 publications

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“…Ti-A surface (Fig. 2 a) exhibited cracks and pores typical of a ceramic oxide coating 16 , 21 . The pore sizes ranged from < 1.00 to 3.00 μm.…”

Section: Resultsmentioning

confidence: 99%

“…Silicate compounds are commonly used constituents for PEO electrolytes, and few studies report the combined influence of these compounds on functionalizing ceramic oxide coatings formed by surface treating T1 alloys 16 . PEO-coated titanium implants, prepared using a silicate containing electrolyte, exhibited higher osseointegration in rat models than raw-titanium implants 17 .…”

Section: Introductionmentioning

confidence: 99%

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Low voltage environmentally friendly plasma electrolytic oxidation process for titanium alloys

Hou¹,

Gorthy²,

Mardon³

et al. 2022

Sci Rep

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Plasma electrolytic oxidation (PEO) is a surface-treatment process extensively used to protect the surfaces of light metals such as Mg, Al, and Ti. Here, we report an environmentally friendly PEO process that uses nitrogen-containing electrolytes and low voltages (120 V) to form ~ 12 micron thick, uniform, adherent and porous oxide coatings on T1 titanium alloy surfaces. We evaluated the influence of nitrogenation by comparing the coatings to alloys treated in PEO baths without nitrogen-containing compounds. Both sets of samples exhibited basalt-like morphologies with distinct variation in the pore structures. The composition analyses showed that the coatings were primarily composites of titanium oxides and silicates. The T1 Ti alloys treated with nitrogen-containing electrolytes also contained TiC and TiN. This is the first ever report of producing TixOy, Ti–Si–O, TiC, and TiN composite coatings using a single PEO bath without carbide/nitride nanoparticles. The bandgaps of the coatings suggested visible light functionality. The use of nitrogen-based compounds in the PEO baths improved the hardness of the oxide layers but introduced stress-induced cracking which are potentially responsible for the reduction in corrosion resistance of the nitride and carbide containing coatings.

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“…Ti-A surface (Fig. 2 a) exhibited cracks and pores typical of a ceramic oxide coating 16 , 21 . The pore sizes ranged from < 1.00 to 3.00 μm.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Low voltage environmentally friendly plasma electrolytic oxidation process for titanium alloys

Hou¹,

Gorthy²,

Mardon³

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Main characteristics of PEO process is the possibility to proper functionalize the coatings thank to the addition of particles into the electrolyte [25] or thank to interactions between the electrolyte and the substrate [26]. In this way the coating resulted composed not only by the oxide of the substrate but also by other compounds, that can confer to the coating proper characteristics, for example cytocompatibility [27] or bactericidal effect [28,29]. The electrolyte employed in the formation of PEO coatings on Ti alloys are usually basic aqueous electrolytes but also other innovative solutions, such as molten salts electrolytes [30,31], have been recently studied in order to further functionalize the obtained coatings.…”

Section: Introductionmentioning

confidence: 99%

Investigation of hydroxyapatite (HAP) containing coating on grade 2 titanium alloy prepared by plasma electrolytic oxidation (PEO) at low voltage

Kostelac

Pezzato

Settimi

et al. 2022

Surfaces and Interfaces

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“…The use of titanium and its alloys is due to its several unique properties, such as high corrosion resistance and strength, low density, high heat capacity, etc. [1][2][3][4][5]. However, titanium and its alloys require additional surface treatment for improving the tribological and corrosion properties [4,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Wearproof Composite Coatings on Ti

Mashtalyar¹

2022

Materials Research Proceedings

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Abstract. In this work the formation of protective coatings on VT1-0 commercially pure titanium by plasma electrolytic oxidation (PEO) and subsequent fluoropolymer treatment is presented. The structure, morphology, corrosion, and mechanical properties of the formed composite coatings were studied. It was established that PEO coatings are an excellent basis for the formation of a solid composite layer with high adhesion to its surface. The presence of polytetrafluoroethylene in the composition of the coating reduces the corrosion current density by 4 orders of magnitude and increases the wear resistance by 2 orders of magnitude in comparison with the base PEO coating.

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The effects of nano- and micro-particles on properties of plasma electrolytic oxidation (PEO) coatings applied on titanium substrates: A review

Cited by 74 publications

References 106 publications

Low voltage environmentally friendly plasma electrolytic oxidation process for titanium alloys

Low voltage environmentally friendly plasma electrolytic oxidation process for titanium alloys

Investigation of hydroxyapatite (HAP) containing coating on grade 2 titanium alloy prepared by plasma electrolytic oxidation (PEO) at low voltage

Wearproof Composite Coatings on Ti

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