Characterization and corrosion evaluation of TiO2:n-HA coatings on titanium alloy formed by plasma electrolytic oxidation

Dzhurinskiy, D.; Gao, Yonghao; Yeung, Kelvin Wai Kwok; Strumban, Emil; Leshchinsky, V.; Chu, Po-Jen; Matthews, A.; Yerokhin, Aleksey; Maev, Roman Gr.

doi:10.1016/j.surfcoat.2015.01.022

Cited by 85 publications

(49 citation statements)

References 36 publications

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“…Consequently, these materials are widely used for biomedical applications such as orthopedic and dental implant [1][2][3][4]. Titanium and its alloys are not bioactive [5,6]. Therefore, they do not chemically bond to the bone, whereas they physically bond with bone tissue [7,8].…”

Section: Introductionmentioning

confidence: 99%

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Durdu

Usta

Berkem

2016

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Durdu

Usta

Berkem

2016

Surface and Coatings Technology

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“…PEO is being particularly attractive for Ti surface treatments allowing the production of crystalline TiO 2 films in which rutile and anatase phases can enhance wear and corrosion resistance of materials [4,43,[52][53][54]. Furthermore, this technique allows the incorporation of bioactive elements such as calcium (Ca) and phosphorous (P) into anodic films during the conversion of the metal surface into Ti oxide [1, 3, 43, 55−58].…”

Section: Introductionmentioning

confidence: 99%

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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“…On the contrary, phosphate based electrolytes induce lower coating thicknesses and roughness, but better adhesion [3]. The electrolyte composition influences the chemical composition of the PEO coatings [2,[5][6][7], because electrolyte compounds, especially anions, can either be directly integrated in the coating or combine with elements from the metal alloy. For instance, mixed oxides (e.g.…”

Section: Introductionmentioning

confidence: 99%

In-depth study of the influence of electrolyte composition on coatings prepared by plasma electrolytic oxidation of TA6V alloy

Laveissière

Cerda

Roche

et al. 2019

Surface and Coatings Technology

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OATAO is an open access repository that collects the work of some Toulouse researchers and makes it freely available over the web where possible. This is version published in:Official URL: To cite this version:A B S T R A C T Coatings were prepared on TA6V alloy by plasma electrolytic oxidation (PEO) using a standard electrical signal. Influence of electrolyte composition on coating characteristics was then extensively studied using four electrolytes of increasing complexity, containing KOH, Na 2 SiO 3 and NaAlO 2 . The combination of SEM, GDOES, XRD characterizations on the one hand and of thermodynamic calculations on the other hand, deeply clarified coating compositions, showing in particular that they include both amorphous and crystalline phases. Amorphous phase resulted directly from the presence of silicate in solution, and was made of complex Si-based oxides difficult to clearly identify. Depending on electrolyte composition, crystalline phases in coatings included simple oxide (i.e. anatase and rutile TiO 2 ) and/or mixed oxide (Al 2 TiO 5 ), resulting from both substrate oxidation and deposition from electrolyte. Therefore, this study successfully offered an innovative approach, combining both experimental characterizations and thermodynamic calculations, to study and tune chemical characteristics of PEO coatings on TA6V.

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Characterization and corrosion evaluation of TiO2:n-HA coatings on titanium alloy formed by plasma electrolytic oxidation

Cited by 85 publications

References 36 publications

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

Bioactive coatings on Ti6Al4V alloy formed by plasma electrolytic oxidation

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

In-depth study of the influence of electrolyte composition on coatings prepared by plasma electrolytic oxidation of TA6V alloy

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