Diamond‐Like Carbon Films

Klages, C.‐P.; Bewilogua, K.

doi:10.1002/9783527618217.ch18

Cited by 4 publications

(3 citation statements)

References 75 publications

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“…1 dargestellt, kohlenstoffbasierte Schichten in Diamantschichten, wasserstoffreie ta-C-Schichten, wasserstoffhaltige DLC-oder auch a-C:H-Schichten, metallhaltige und damit leitfa È hige Me-DLC-oder Me-C:H-Schichten und mit nichtmetallischen Elementen modifizierte DLC-oder a-C:H:X-Schichten [1,2]. Heute steht den Anwendern eine Stoffgruppe von harten, verschleissbesta È ndigen und sehr reibarmen bis hin zu teflona È hnlichen Schichttypen fu È r die unterschiedlichsten technischen Anwendungen zur Verfu È gung.…”

Section: Introductionunclassified

Verschleissfeste Antihaftschichten auf Basis modifizierter diamantähnlicher Kohlenstoffschichten

Hieke¹

2001

VIP

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Section: Introductionunclassified

Verschleissfeste Antihaftschichten auf Basis modifizierter diamantähnlicher Kohlenstoffschichten

Hieke¹

2001

VIP

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“…DLC represents a major field of interest in the biomaterials community due to its antibacterial properties. The term 'diamond-like carbon', or 'DLC', was coined in the early 1970s to denote amorphous carbon films, which are expected to recapitulate those of genuine diamond in terms of density, strength and hardness [109]. Indeed, DLC films are characterised by high hardness (10-30 GPa) and high elastic modulus (100-300 GPa) [110].…”

Section: Metal Nanoparticle Coatingsmentioning

confidence: 99%

Biomaterial strategies to combat implant infections: new perspectives to old challenges

Braem

Kamarudin

Bhaskar

et al. 2023

International Materials Reviews

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Peri-implant infection is rapidly becoming anif not the mostimportant clinical challenge for indwelling medical devices. To alleviate the global rise in antibiotic use for the treatment of such infections, a plethora of biomaterials/bioengineering-based antimicrobial strategies are emerging to restrict or ideally to eliminate microbial adhesion and biofilm formation on implant surfaces. Yet, the development of such approaches faces specific challenges, like biocompatibility concerns, reduced antimicrobial effectiveness, long-term stability issues and antibiotic resistance development, which limit translation to the clinic. This review provides insights into the antimicrobial activity of current state-of-the-art biomaterial-based approaches to address the aforementioned issues. Translational research strategies and regulatory framework are also emphasised as key elements facilitating clinical implementation of anti-infective biomaterials. This review closes with the vision that the integration of computational tools and experimental databases using artificial intelligence (AI) would provide new insights for the accelerated development of next-generation biomaterial-based antimicrobial strategies.

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“…The decrease in the content of undesirable molecules and residual gases, such as water vapor and oxygen, in the deposition chamber is proposed as one of the key factors reducing the oxygen in the structure of the deposited interlayer . Moreover, traces of oxygen in the films are likely the reason of observed spontaneous delamination of the film because they easily replace chemical bonds such as Si–C and Si–Fe that would favor adhesion. , Therefore, a quantitative understanding of the interface’s chemistry is necessary, and it is still lacking, considering at this point the influence of residual oxygen stemming from the molecules present in the deposition chamber. Moreover, modeling approaches could enhance such analysis, helping as well on the quantitative comprehension of adhesion as a function of processing parameters and further industrial application of the findings.…”

Section: Introductionmentioning

confidence: 99%

Adhesion of Amorphous Carbon Nanofilms on Ferrous Alloy Substrates Using a Nanoscale Silicon Interlayer: Implications for Solid-State Lubrication

Boeira

Cemin

Leidens

et al. 2022

ACS Appl. Nano Mater.

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The low adhesion of amorphous carbon (a-C) films on ferrous alloys has restricted massive industrial application since their development, restricting application to mechanical and electromechanical components. Although different mechanisms have been raised to describe the a-C film adhesion, the chemical affinity and the role of oxygen at the interfaces are the key issue. Nevertheless, a quantitative approach considering the oxygen adsorption and the adhesion strength/base pressure relationship is still not proposed, which would be of special interest in industry. In this study, we analyze the influence of the base pressure on the adhesion of amorphous carbon (a-C) films onto a ferrous alloy intermediated by a nanometric silicon interlayer. The different base pressure deposition resulted in different adhesion of the films. By means of structural and chemical techniques, the oxygen content at the interfaces was quantified and correlated with the base pressure before thin film deposition. We propose a quantitative physicochemical model that correlates the a-C film adhesion with oxygen located at the interfaces, which is indirect evidence of its previous presence in the deposition chamber, as a fraction of the residual gases from the base pressure. As adhesion depends on oxygen content, we used the Langmuir isothermal law to evaluate this dependence with good agreement. This model may be of potential interest in plasma surface engineering and process automatization not only for carbon-related materials deposited on metals, mainly in its potential use as a solid lubricant.

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Diamond‐Like Carbon Films

Cited by 4 publications

References 75 publications

Verschleissfeste Antihaftschichten auf Basis modifizierter diamantähnlicher Kohlenstoffschichten

Verschleissfeste Antihaftschichten auf Basis modifizierter diamantähnlicher Kohlenstoffschichten

Biomaterial strategies to combat implant infections: new perspectives to old challenges

Adhesion of Amorphous Carbon Nanofilms on Ferrous Alloy Substrates Using a Nanoscale Silicon Interlayer: Implications for Solid-State Lubrication

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