Pore size effect on cell response via plasma electrolytic oxidation

Shin, Kihong; Kim, Y. S.; Jeong, Jung-Hoon; Ko, Young Gun; Shin, Dong Hyuk

doi:10.1179/1743294415y.0000000026

Cited by 16 publications

(4 citation statements)

References 11 publications

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“…Shin et al [46] reported that porous structured implants could be the best option for establishing an effective interfacial interaction between the implant device and the host tissues. The aspects of the EDM process indicate that researchers can achieve a porous surface by adjusting process variables in a synchronized manner.…”

Section: Applications Of Conventional Ed Machined Surfaces In the Bio...mentioning

confidence: 99%

Electrical discharge machining- a futuristic technique for surface engineering of biomedical alloys: a concise review

Mahajan¹,

Devgan²,

Kalyanasundaram³

2022

Surf. Topogr.: Metrol. Prop.

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Electrical discharge machining(EDM) has proven effective in the processing of tough and complicated structural materials that are often challenging to manufacture or alter using traditional machining techniques. EDM represents a promising technique for the surface engineering of biomedical devices. In this article, electrical discharge machining is discussed for its high precision in surface modification as well as surface properties. According to previous studies on this non-traditional machining technique, optimizing critical EDM process variables such as pulse duration, voltage, current, polarity, dielectric fluid, and electrodes can yield adequate surface integrity and bioactive coating on alloys. As a result, the EDM process could be prospectively employed to examine issues including bioimplant manufacture and precision modeling.

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Section: Applications Of Conventional Ed Machined Surfaces In the Bio...mentioning

confidence: 99%

Electrical discharge machining- a futuristic technique for surface engineering of biomedical alloys: a concise review

Mahajan¹,

Devgan²,

Kalyanasundaram³

2022

Surf. Topogr.: Metrol. Prop.

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“…The high processing speed and low cost are the main advantages of this method. Also, the produced coating has excellent adhesion to the substrate, and its porous structure improves the bioactivity in biomedical applications [13,14]. The coating composition and microstructure are mainly affected by many parameters such as electrolyte composition [15,16], substrate material [17], applied current mode [18,19], and used electrical variables [20].…”

Section: Introductionmentioning

confidence: 99%

Corrosion behaviour of TiC/N coating prepared by plasma electrolytic saturation on NiTi

Chitsaz-Khoyi

Khalil‐Allafi

Etminanfar

2020

Surface Engineering

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In this research, plasma electrolytic saturation of carbon and nitrogen was used to prepare TiC/N coating on NiTi alloy. In this regard, four types of urea-based electrolytes with various amounts of NH 4 NO 3 were employed. The effect of electrolyte composition on the characteristics of the formed layer was studied using grazing incidence X-ray diffraction and scanning electron microscopy. The results showed that the TiC 0.2 N 0.8 compound was formed in coating. The pore size of coating was increased by increasing the concentration of NH 4 NO 3 . To investigate the corrosion resistance of the coated samples, the potentiodynamic polarization test and electrochemical impedance spectroscopy were performed in Ringer's solution. It was observed that as the NH 4 NO 3 concentration of electrolyte increased, the corrosion resistance of the formed layer was reduced. Such a behaviour was attributed to the operating current as well as discharge energy enhancement which caused the deep cracks and porosities formation in the coating.

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“…Based on electrochemical methods, micro-arc oxidation (MAO) is a promising technique and it can produce high hardness of ceramic coating on titanium alloy. Many studies have shown that MAO not only improves wear and corrosion resistance, but also significantly enhances biocompatibility [11,12]. During the MAO process, bioactive elements such as Ca and P can be simultaneously incorporated into the coating from the electrolyte [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Influence of microstructure of TC4 substrate on the MAO coating

Wang

Sun

et al. 2019

Surface Engineering

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The influence of microstructures of the two TC4 substrates on the growth process and properties of micro-arc oxidation (MAO) coatings were investigated and compared. The morphologies, thickness, roughness and compositions of the coatings on forging-TC4 (F-MAO) and SLM-TC4 (S-MAO) were characterised by scanning electron microscopy, atomic force microscopy, energy-dispersive spectroscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The SLM-TC4 exhibits needles of α ′ phase, while forging-TC4 have distinct α and β phases. The results show that α ′ phase of SLM-TC4 causes the discharge channels to be uniform during MAO process, making S-MAO free of cracks. The S-MAO coating has smaller pores and lower roughness, but thicker than that of F-MAO coating. S-MAO coating has better corrosion resistance and biological activity than that of F-MAO in SBF.

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Pore size effect on cell response via plasma electrolytic oxidation

Cited by 16 publications

References 11 publications

Electrical discharge machining- a futuristic technique for surface engineering of biomedical alloys: a concise review

Electrical discharge machining- a futuristic technique for surface engineering of biomedical alloys: a concise review

Corrosion behaviour of TiC/N coating prepared by plasma electrolytic saturation on NiTi

Influence of microstructure of TC4 substrate on the MAO coating

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