Effect of electrolyte on surface properties of pure titanium coated by plasma electrolytic oxidation

Shin, Kihong; Ko, Young Gun; Shin, Dong Hyuk

doi:10.1016/j.jallcom.2011.02.056

Cited by 78 publications

(41 citation statements)

References 22 publications

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“…The morphology of the anodized surfaces at different PEO conditions is shown in Fig. 1b-e. After anodic oxidation treatments, the surfaces presented porous structures, which are typical to obtain after PEO treatments [67]. Micropores are produced in the dielectric breakdown regime associated to high local temperatures, sparks production, and the vigorous release of oxygen and/or water vapor release at surface/electrolyte interface [16,46,61].…”

Section: Surface Characterizationmentioning

confidence: 97%

“…The MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide) assay allows the appraisal of living and metabolically active cells by their reduction activity of the yellow MTT to the correspondent insoluble purple formazan product through mitochondrial dehydrogenase [55,67,68]. After 1, 3, and 7 days, the cultured materials were incubated with MTT (0.5 mg/ml) for 3 h at 37°C.…”

Section: Mtt Assaymentioning

confidence: 99%

“…Li et al [46] also concluded that the presence of Ca and P in the oxide films enhanced the bonding strength between PEO-treated Ti implants and bone. It has been demonstrated that anodic films produced by PEO treatments and doped with Si, Ca, and Na possess a good ability to form a biomimetic apatite layer onto their surfaces once in contact with simulated body fluid solutions [51,56,67].…”

Section: Mtt Assaymentioning

confidence: 99%

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Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

et al. 2015

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Titanium (Ti) dental implants are frequently exposed simultaneously to a corrosive environment and cyclic micromovements at implant/abutment and implant/ bone interfaces, becoming part of a tribocorrosion system. Thus, wear debris and corrosion products/ions can be released to peri-implant tissues and induce inflammatory reactions leading to implant failure. Moreover, the poor osseointegration is also one of the main problems affecting dental implants lifetime. Surface modification strategies have been proposed to design novel Ti oxide-based multifunctional surfaces that are able to simultaneously improve cellular functions and provide enhanced tribocorrosion resistance. Hence, the main objective of this work was the synthesis of Calcium (Ca)-and Phosphorous (P)-enriched Ti oxide films aimed to display superior wear/corrosion performance and simultaneously, to enhance osteoblast-material interactions. Ca-and P-enriched films were synthesized by plasma electrolytic oxidation (PEO) and their characteristics were assessed by Field emission scanning electron microscopy, profilometry, energy-dispersive X-ray spectroscopy, X-ray diffraction, and water contact angle measurements. PEO-treated samples were subjected to pin-on-disk reciprocating sliding tests in artificial saliva at 37°C. The viability of MG63 cells cultured on PEO-treated samples was investigated by MTT assay, and their adhesion ability by SEM and confocal laser scanning microscopy. The wear/corrosion behavior of Ti was improved after PEO treatments and the electrolyte composition appeared to play a crucial role both on its corrosion tendency and mechanical wear resistance. It is believed that this improvement is related to the higher rutile/anatase ratio exhibited by Ca-and P-enriched surfaces. Osteoblasts were well spread on these surfaces displaying improved viability/proliferation compared to Ti.

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Section: Surface Characterizationmentioning

confidence: 97%

Section: Mtt Assaymentioning

confidence: 99%

Section: Mtt Assaymentioning

confidence: 99%

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Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

et al. 2015

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“…Different electrolytes result in different growth rates, structures, phase compositions and element distribution of the PEO coatings [22][23][24][25]. Generally, the electrolytes used for PEO treatment are composed of acidic electrolytes and alkaline electrolytes.…”

Section: Influence Of Electrolytesmentioning

confidence: 99%

Plasma Electrolytic Oxidation Coatings on Lightweight Metals

Li¹,

Liang²,

Wang³

2013

Modern Surface Engineering Treatments

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“…Thus the properties of the PEO coating e.g. thickness, roughness, porosity, phase composition, hardness and mechanical resistance are changed [4,5].…”

Section: Introductionmentioning

confidence: 99%

Growth Characteristics of Plasma Electrolytic Oxidation Coatings on Aluminum Alloys

Ayday

Durman

2015

Acta Phys. Pol. A

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The ceramic coating on aluminum alloy was prepared in sodium metasilicate electrolyte by plasma electrolytic oxidation (PEO). The eect of PEO treating time on surface layer was investigated. The morphology and phase composition of the ceramic coatings were characterized by scanning electron microscopy (SEM) and X-ray diractometer (XRD). The eect of the electrolyte contents on the growth mechanism, element distribution and properties of oxide layers were studied. Oxide coatings morphology is strongly dependent on PEO process time. The microdischarges characteristics were studied as well, and it is shown that size of microdischarges becomes larger with increasing time of PEO. XRD analysis showed that Plasma Electrolytic Oxidation coating has hard, dominantly Al2O3 phase.

show abstract

Effect of electrolyte on surface properties of pure titanium coated by plasma electrolytic oxidation

Cited by 78 publications

References 22 publications

Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

Tribocorrosion Behavior of Calcium- and Phosphorous-Enriched Titanium Oxide Films and Study of Osteoblast Interactions for Dental Implants

Plasma Electrolytic Oxidation Coatings on Lightweight Metals

Growth Characteristics of Plasma Electrolytic Oxidation Coatings on Aluminum Alloys

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