Systematic optimization of corrosion, bioactivity, and biocompatibility behaviors of calcium-phosphate plasma electrolytic oxidation (PEO) coatings on titanium substrates

Molaei, Maryam; Fattah‐alhosseini, Arash; Nouri, Meisam; Nourian, Alireza

doi:10.1016/j.ceramint.2021.11.175

Cited by 50 publications

(8 citation statements)

References 131 publications

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“…The most popular micro-arc coatings today are based on calcium phosphates (brushite, hydroxyapatite, tricalcium phosphate), calcium silicates (wollastonite, akermanite), etc. [36][37][38][39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Sedelnikova

Kashin

Уваркин

et al. 2023

JFB

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In the present work, the surface of a biodegradable Mg alloy was modified to create porous diatomite biocoatings using the method of micro-arc oxidation. The coatings were applied at process voltages in the range of 350–500 V. We have studied the influence of the addition of ZrO2 microparticles on the structure and properties of diatomite-based protective coatings for Mg implants. The structure and properties of the resulting coatings were examined using a number of research methods. It was found that the coatings have a porous structure and contain ZrO2 particles. The coatings were mostly characterized by pores less than 1 μm in size. However, as the voltage of the MAO process increases, the number of larger pores (5–10 μm in size) also increases. However, the porosity of the coatings varied insignificantly and amounted to 5 ± 1%. It has been revealed that the incorporation of ZrO2 particles substantially affects the properties of diatomite-based coatings. The adhesive strength of the coatings has increased by approximately 30%, and the corrosion resistance has increased by two orders of magnitude compared to the coatings without zirconia particles.

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Section: Introductionmentioning

confidence: 99%

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Sedelnikova

Kashin

Уваркин

et al. 2023

JFB

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“…In particular, the biocompatibility was obtained either by addition of proper particles into the electrolyte [34,35] or by proper formulation of the electrolyte in order to directly form Hap during the treatment. In this second case, specific compounds should be added into the electrolyte, in particular Ca and P compounds as deeply studied by Molaei et al [36]. However, in literature, as reported for example in the comprehensive review work of Pesode et al [37] or in the book [38], PEO coatings on Ti alloys are produced at high voltages, between 500 and 800 V, with very high energy consumption.…”

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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“…Highly porous and rough surface coatings can be obtained after PEO due to the nature of the treatment. Besides the roughness, the porosity of the coating also significantly affects the spreading of water on contact angle measurements [93]. The pores on the surface can partially absorb the water resulting in a lower contact angle [94,95].…”

Section: Structural Characterizationsmentioning

confidence: 99%

Corrosion and wear performances of hydroxyapatite and boron-containing TiO₂ composite coatings on Ti6Al7Nb alloy

Vangolu¹,

Kilic²

2022

Surf. Topogr.: Metrol. Prop.

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Plasma electrolytic oxidation coupled with hydrothermal treatment is a relatively new technique to form a hydroxyapatite/TiO2 layer on titanium alloys for biomedical applications. Hence the process allows achieving a bioactive and bactericidal surface by using electrolytes that contain ions (such as calcium-phosphorus and boron) necessary for desired properties. The coating properties are controllable by adjusting the parameters in the PEO process. In the present study, an electrolyte that contains both calcium, phosphorus, and boron ions was used to form a rough and porous oxide layer on Ti6Al7Nb which is known to be less toxic than the most widely used Ti alloy for biomedical applications, Ti6Al4V. A hydroxyapatite and boron-containing oxide layer was obtained after plasma electrolytic oxidation and hydrothermal treatment. Coatings were examined by XRD, XPS, SEM, contact angle measurement system, micro-hardness tester, wear tester, and corrosion measurement system. The results showed that the wear and the corrosion properties of all coated samples increased. Especially boron doping enhanced both the wear and corrosion resistance. Relatively the best corrosion resistance was achieved from CaP-B and the best wear resistance was from HA-B samples. The hardness values and mean surface roughness of all coated samples also increased while the average friction coefficients decreased. The hardness increased from 323 ± 5 HV0.1 to 1084 ± 16 HV0.1 where the coefficient of friction decreased from 0.5672 ± 0.01 to 0.4697 ± 0.03.

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Systematic optimization of corrosion, bioactivity, and biocompatibility behaviors of calcium-phosphate plasma electrolytic oxidation (PEO) coatings on titanium substrates

Cited by 50 publications

References 131 publications

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

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

Corrosion and wear performances of hydroxyapatite and boron-containing TiO₂ composite coatings on Ti6Al7Nb alloy

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Systematic optimization of corrosion, bioactivity, and biocompatibility behaviors of calcium-phosphate plasma electrolytic oxidation (PEO) coatings on titanium substrates

Cited by 50 publications

References 131 publications

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

Porous Biocoatings Based on Diatomite with Incorporated ZrO2 Particles for Biodegradable Magnesium Implants

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

Corrosion and wear performances of hydroxyapatite and boron-containing TiO2 composite coatings on Ti6Al7Nb alloy

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Product

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Corrosion and wear performances of hydroxyapatite and boron-containing TiO₂ composite coatings on Ti6Al7Nb alloy