Characterization and bioactivity of hydroxyapatite-based coatings formed on steel by electro-spark deposition and micro-arc oxidation

Durdu, Salih; Korkmaz, Kemal; Aktuğ, Salim Levent; Çakır, Ali

doi:10.1016/j.surfcoat.2017.07.039

Cited by 31 publications

(14 citation statements)

References 78 publications

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“…•6H 2 O, and 0.3 M (NH 4 ) 2 HPO 4 in 1.67 ratio (Ca + Zn + Mg)/P; the prepared solution was continuously stirred, and the pH of the electrolyte solution was adjusted to 4.5 by adding a diluted solution of 0.1 M NH 4 OH [12][13][14]. e MHA electrolyte was then deaerated for 15 min in N 2 atmosphere in order to reduce the amount of dissolved carbon dioxide and thus to minimize the formation of calcium carbonate deposits.…”

Section: Preparation Of Electrolytementioning

confidence: 99%

“…HA has a suitable material for coating on Ti6Al4V alloys to improve the bioactivity and decrease the degradation rate [10]. However, pure HA cannot be used for a long-time high-load-bearing implant prosthesis because of its poor biological activity such as low antibacterial activity and poor mechanical properties such as material brittleness, bending strength, and low fracture toughness; furthermore, biological materials with some metallic antibacterial agentsubstituted HA coatings to improve the biological properties of the implants show antimicrobial activity [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…erefore, several coating techniques have been reported to fabricate HA composite coating on titanium-based alloy surfaces. Electrochemical deposition technique has numerous advantages compared with other coating techniques, due to low processing cost, less time consumption to grow uniform coatings, easy control of the thickness resulting in homogeneous morphology, and adjustment of the deposition time and applied potential [11,12].…”

Section: Introductionmentioning

confidence: 99%

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Halloysite Nanotube-Reinforced Ion-Incorporated Hydroxyapatite-Chitosan Composite Coating on Ti-6Al-4 V Alloy for Implant Application

Chozhanathmisra

Pandian

Govindaraj

et al. 2019

Journal of Chemistry

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To develop the corrosion resistance and improve the biological performance of a titanium implant (Ti6Al4V alloy), a series of mineral (M = Zn and Mg)-substituted hydroxyapatite (MHA), chitosan-MHA (CS-MHA), halloysite nanotube-MHA (HNT-MHA), and HNT-CS-MHA composite coatings were fabricated on the anodized titanium alloy by electrodeposition. The surface morphology and cross section of various coated composites were investigated by high-resolution scanning electron microscopy (HR-SEM). Furthermore, the functional groups and phase structure of the composite coatings were investigated by Fourier transform infrared spectroscopy (FTIR) and X-ray diffractometry (XRD). Corrosion behaviors of the composite coatings were also investigated by polarization and impedance spectroscopy (EIS). Moreover, the cell-material interaction of the composite coating was observed in vitro with human osteoblast MG63 cells for cell proliferation at 1, 4, and 7 days of incubation. Consequently, HNT-CS-MHA-Ti may have potential applications in the field of orthopedic and dental implants.

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Section: Preparation Of Electrolytementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Halloysite Nanotube-Reinforced Ion-Incorporated Hydroxyapatite-Chitosan Composite Coating on Ti-6Al-4 V Alloy for Implant Application

Chozhanathmisra

Pandian

Govindaraj

et al. 2019

Journal of Chemistry

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“…Another direction of development of ESA technology is a combination of ESA with other surface strengthening and modification methods. We can mention researches on the additional treatment of electro-spark deposited layers using the micro-discharge oxidation method [16,17]. The results show that after the follow-up treatment, the microhardness of ESA coatings was increased by 80% and wear resistance was improved by 70%.…”

Section: Introductionmentioning

confidence: 99%

Two-Layer Nanocomposite TiC-Based Coatings Produced by a Combination of Pulsed Cathodic Arc Evaporation and Vacuum Electro-Spark Alloying

Kiryukhantsev-Korneev

Сытченко

Sheveyko

et al. 2020

Materials

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A novel two-stage technology combining vacuum electro-spark alloying (VESA) and pulsed cathodic arc evaporation (PCAE) was approbated for the deposition of TiC-based coatings in inert (Ar) and reactive (C2H4) atmospheres. The deposition was carried out using a TiC-NiCr-Eu2O3 electrode and 5140 steel substrates. Structural, elemental, and phase compositions of the deposited coatings were investigated by scanning electron microscopy, energy-dispersive spectrometry, and X-ray diffraction. The mechanical properties of the coatings were measured by nanoindentation using a 4 mN load. The tribological properties of the coatings were measured using the pin-on-disc setup in air and in distilled water at a 5 N load. The experimental data suggest that VESA coatings are characterized by surface defects, a hardness of 12.2 GPa, and a friction coefficient of 0.4. To ensure good adhesion between the VESA coating and the upper layer containing diamond-like carbon (DLC), an intermediate layer was deposited by PCAE in the Ar atmosphere. The intermediate layer had a hardness of up to 31 GPa. The upper layer of the coating ensured a low and stable friction coefficient of 0.2 and high wear resistance due to the formation of an sp2–sp3 bound carbon phase. Multilayer TiC-based coating with the upper DLC layer, in addition to high tribological properties, was characterized by the lowest corrosion current density (12 μA/cm2).

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“…Покрытия внутрикостных имплантатов должны обла-дать определенными структурно-морфологическими и физико-химическими характеристиками, в частности: обладать определенной пористостью [1,2], гидрофиль-ностью [3,4], высокими адгезионными характеристика-ми [5,6] и др. Также немаловажным фактором является наличие наночастиц в сформированном покрытии, ко-торые могут способствовать процессам остеоинтегра-ции [7 -9].…”

Section: Introductionunclassified

Investigation of the properties of biocomposite plasma coatings «titanium-magnesium-substituted calcium phosphates»

Lyasnikova¹,

Dudareva²,

Grishina³

et al. 2018

LoM

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Characterization and bioactivity of hydroxyapatite-based coatings formed on steel by electro-spark deposition and micro-arc oxidation

Cited by 31 publications

References 78 publications

Halloysite Nanotube-Reinforced Ion-Incorporated Hydroxyapatite-Chitosan Composite Coating on Ti-6Al-4 V Alloy for Implant Application

Halloysite Nanotube-Reinforced Ion-Incorporated Hydroxyapatite-Chitosan Composite Coating on Ti-6Al-4 V Alloy for Implant Application

Two-Layer Nanocomposite TiC-Based Coatings Produced by a Combination of Pulsed Cathodic Arc Evaporation and Vacuum Electro-Spark Alloying

Investigation of the properties of biocomposite plasma coatings «titanium-magnesium-substituted calcium phosphates»

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