Adherent diamond-like carbon coatings on metals via PECVD and IBAD

Capote, Gil; Bonetti, L.F.; Santos, L.V.; Trava-Airoldi, V.J.; Corat, Evaldo José

doi:10.1590/s0103-97332006000600050

Cited by 10 publications

(6 citation statements)

References 12 publications

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“…In many applications, a low substrate temperature is necessary, as is the capacity to generate unique materials. Plasma processing happens at temperatures close to ambient, which helps prevent heatrelated process yield loss [69]. Thermal stress and degradation in polymer devices are minimized by the room-temperature plasma process [70].…”

Section: Organic Coatingsmentioning

confidence: 99%

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Application of Pecvd in the Conservation of Metallic Cultural Heritage: A Review

Mohamed

Rifai

et al. 2022

Egyptian Journal of Archaeological and Restoration Studies

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Plasma technology is a modern, non-conventional technique with a wide range of applications in various fields. Plasma-based material processing technology aims to modify the chemical and physical properties of metallic, polymer, textile, and dielectric surfaces. Plasma processing techniques include plasma etching, cleaning, plasma surface activation and functionalization, and plasma deposition. Plasma processing has attracted the attention of cultural heritage restoration due to its low temperature, selectivity, durability, and effectiveness. The goal of this work is to introduce readers to previous studies on the different uses of plasma-based technology in the conservation and restoration of metallic cultural and historical artifacts. It focuses on the role of the different plasma-based coating techniques especially plasma enhanced chemical vapor deposition (PECVD) for archaeological and artistic metallic artifacts that need reversible coatings with a pleasing aesthetic appearance and a good barrier effect against atmospheric pollution at low temperatures.

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Section: Organic Coatingsmentioning

confidence: 99%

“…Furthermore, direct application to the exterior or inside of complex-shaped items is possible [67]. Depending on the type and size of the device, this can be applied to multiple items at once [69,70]. So that varied substrate shapes, such as flat, hemispherical, cylindrical, inside tubes, etc., can be consistently coated [64].…”

Section: Organic Coatingsmentioning

confidence: 99%

Application of Pecvd in the Conservation of Metallic Cultural Heritage: A Review

Mohamed

Rifai

et al. 2022

Egyptian Journal of Archaeological and Restoration Studies

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“…Our group and collaborators have, for many years, investigated the parameters of the DLC deposition process, using acetylene or hexane with several metallic surfaces modified with a silicon interface. These studies provided the best conditions for the PECVD system, considering the effects of precursors, pressure, voltage, and current in terms of controlling the hydrogen content in DLC films [20,22,23]. The present work considers the effects of these parameters in terms of managing the film thickness.…”

Section: Dlc Deposition Proceduresmentioning

confidence: 99%

Tribocorrosion studies on diamond-like carbon film deposited by PECVD on 304 stainless steel in simulated body fluid

Oliveira

Barzotto

Vieira

et al. 2019

Biomed. Phys. Eng. Express

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In this paper, a diamond-like carbon (DLC) film with a controlled content of hydrogen (20%) and carbon (80%) was deposited onto a 304 stainless steel (304SS). Tribocorrosion tests were performed following immersion in simulated body fluid (SBF) solution. The DLC film with hydrogen and carbon control decreased the SS304 corrosion susceptibility 59-fold, compared to the bare surface, improving on the corrosion protection provided by DLC reported in the literature. Debris or nanoparticles from corroded metals can cause cytotoxicity or genotoxicity towards many cells, so these possible effects were evaluated using A172 glial cells (ATCC #CRL-1620 glioblastoma). The DLC film was not genotoxic or cytotoxic towards the glial cells. Furthermore, no cytotoxicity or genotoxicity was observed in the A172 cells after exposure to the SS304 covered with DLC film, even after 24 h of incubation, when compared to untreated cells. The methodology adopted, using a silicon interface between the DLC and the 304SS, was effective in preventing delamination of the DLC film. This report provides full information concerning methods for the production and characterisation of this DLC film.

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“…However, the adherence of these films can be a problem, since delamination had been described (11). As an technical resolution to adherence problem, an intermediate layer of silicon has been used between the different types of substrates and the DLC films to increase the adhesion of these coatings (12). This paper evaluates the in vivo effect of DLC and DLC-Ag film deposition by plasma-enhanced chemical vapor deposition (PECVD) on titanium alloy samples to pursue its future use as a coating material for prosthetic joints.…”

Section: Introductionmentioning

confidence: 99%

Effect of DLC Films with and without Silver Nanoparticles Deposited On Titanium Alloy

et al. 2019

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Diamond-like carbon (DLC) film is a biocompatible hard coating material that can prevent the leaching of metal ions. This study evaluates the structural characteristics of DLC, with and without silver nanoparticles, deposited by plasma (PECVD) on titanium alloy (Ti-6Al-4V) and bone formation in contact with DLC films. Sixty Ti-6Al-4V samples were used divided in: uncoated, coated with DLC and coated with DLC-Ag. After structural characterization, samples were fixed bilaterally at the rabbit's mandible. After 15 and 90 days, samples were characterized again and bone formation in the area was analyzed by histomorphometry. Statistical analysis was performed by two-way ANOVA. Both the DLC and DLC-Ag films were firmly adhered and showed a high electrical resistance without significant changes in the Raman spectrum after in vivo integration. After 15 days, there were immature bone trabeculae in the interface and partially covering the surface. After 90 days, mature bone filled the interface and coved the surface. There was no statistically significant difference among the three groups in both periods. In conclusion, osseointegration with DLC, DLC-Ag and uncoated Ti-6Al-4V is similar. However, DLC and DLC-Ag coverings have the advantage of electrical insulation and can presumably control bacterial activity and ion leaching.

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Adherent diamond-like carbon coatings on metals via PECVD and IBAD

Cited by 10 publications

References 12 publications

Application of Pecvd in the Conservation of Metallic Cultural Heritage: A Review

Application of Pecvd in the Conservation of Metallic Cultural Heritage: A Review

Tribocorrosion studies on diamond-like carbon film deposited by PECVD on 304 stainless steel in simulated body fluid

Effect of DLC Films with and without Silver Nanoparticles Deposited On Titanium Alloy

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