Applications of diamond-like carbon thin films

Lettington, Alan H.

doi:10.1007/978-94-011-0725-9_10

Cited by 16 publications

(16 citation statements)

References 30 publications

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“…In addition, the diamond coating may act to prevent or slow the release of potentially toxic heavy metal ions into surrounding tissue from the alloy itself (Kobayashi et al , 2007, Ohgoe et al , 2006). However, CVD diamond deposition onto transition metals such as nickel and cobalt which have partially filled d-electron shells is made difficult because of the catalytic formation of graphite (Lettington and Steeds, 1994, Davis, 1993, Chen and Narayan, 1993) during initial stages of growth. These transition metals have high carbon diffusivity and do not form stable carbides, making nucleation of the diamond phase difficult.…”

Section: 2 Ultra-hard Carbon Coatingsmentioning

confidence: 99%

“…CVD deposition of diamond onto substrates comprising primarily transition elements cobalt, iron or nickel is inherently difficult because of the propensity of these elements to act as a catalyst for graphite formation (Lettington and Steeds, 1994, Davis, 1993, Chen and Narayan, 1993) during initial stages of growth. An additional hurdle for diamond deposition on steel is the large mismatch in thermal coefficients of expansion (1 × 10 –6 /°C for diamond and 17 × 10 –6 /°C for stainless steel, at room temperature).…”

Section: 2 Ultra-hard Carbon Coatingsmentioning

confidence: 99%

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Nanostructured diamond coatings for orthopaedic applications

Catledge

Thomas

Vohra

2013

Diamond-Based Materials for Biomedical Applications

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With increasing numbers of orthopaedic devices being implanted, greater emphasis is being placed on ceramic coating technology to reduce friction and wear in mating total joint replacement components, in order to improve implant function and increase device lifespan. In this chapter, we consider ultra-hard carbon coatings, with emphasis on nanostructured diamond, as alternative bearing surfaces for metallic components. Such coatings have great potential for use in biomedical implants as a result of their extreme hardness, wear resistance, low friction and biocompatibility. These ultra-hard carbon coatings can be deposited by several techniques resulting in a wide variety of structures and properties.

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Section: 2 Ultra-hard Carbon Coatingsmentioning

confidence: 99%

Section: 2 Ultra-hard Carbon Coatingsmentioning

confidence: 99%

Nanostructured diamond coatings for orthopaedic applications

Catledge

Thomas

Vohra

2013

Diamond-Based Materials for Biomedical Applications

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“…Diamond-like carbon (DLC) films are extensively utilized in various fields owing to their high hardness, low friction, chemical stability, and high wear resistance [ 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. The amorphous DLC films comprise sp 3 -bonded carbon of diamond with a tetrahedral 3D-network structure, sp 2 -bonded carbon of graphite with a hexagonal structure, and hydrogen [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Multilayered DLC Films with Wear Resistance and Antiseizure Properties

et al. 2021

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Diamond-like carbon (DLC) films have attracted considerable interest for application as protective films in diverse industrial parts. This is attributed to their desirable characteristics, such as high hardness, low coefficient of friction, gas-barrier properties, and corrosion resistance. Antiseizure properties, in addition to wear resistance, are required during the die molding of polymer and polymer-matrix composite parts. Graphite films can be easily peeled because the vertically stacked graphene sheets are bonded via weak van der Waals forces. The present study demonstrates the fabrication of multilayered DLC/Cu films, where the Cu film functions as a catalyst for the formation of a graphite-like layer between the DLC and Cu films. The DLC/Cu film was synthesized on a Si (100) substrate via plasma-enhanced chemical vapor deposition and magnetron sputtering. The peelability, wear resistance, microstructure, texture, and cross-section of the film were experimentally analyzed. The results indicated a variation in the peelability with the deposition conditions of the Cu film that comprised particles with diameters of several nanometers. The DLC film at the interface in contact with the Cu film was transformed into a graphite-like state i.e., graphitized. The surface of the multilayered film exhibited antiseizure properties with the peeling of the upper DLC film. The multilayered film also exhibited wear resistance owing to the repeated appearances of a new DLC film. It is expected that the wear-resistant films with antiseizure properties demonstrated in the present study will be utilized in various industrial sectors.

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“…In this study, we aimed to introduce ZnS and diamondlike carbon (DLC) core-shell heterostructure nanowires to gain better insight into their applications towards nanoscale electrodevices. DLC is well-known as sp 2 and sp 3 hybridized amorphous carbon materials and can be used in various applications due to the superior mechanical properties with a low friction coefficient, wear resistance, chemical inertness, and biocompatibility [23][24][25]. We fabricated ZnS/DLC coreshell heterostructure nanowires by a simple two-step process: the vapor-liquid-solid (VLS) method combined with radio frequency plasma enhanced chemical vapor deposition (rf PECVD).…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of ZnS/Diamond-Like Carbon Core-Shell Nanowires

Kim

et al. 2016

Journal of Nanomaterials

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We fabricated ZnS/diamond-like carbon (DLC) core-shell heterostructure nanowire using a simple two-step process: the vapor-liquid-solid method combined with radio frequency plasma enhanced chemical vapor deposition (rf PECVD). As a core nanowire, ZnS nanowires with face-centered cubic structure were synthesized with a sputtered Au thin film, which exhibit a length and a diameter of ~10 μm and ~30–120 nm . After rf PECVD for DLC coating, The length and width of the dense ZnS/DLC core-shell nanowires were a range of ~10 μm and 50–150 nm , respectively. In addition, ZnS/DLC core-shell nanowires were characterized with scanning transmission electron microscopy. From the results, the products have flat and uniform DLC coating layer on ZnS nanowire in spite of high residual stress induced by the high sp3fraction. To further understanding of the DLC coating layer, Raman spectroscopy was employed with ZnS/DLC core-shell nanowires, which reveals two Raman bands at 1550 cm−1(G peak) and 1330 cm−1(D peak). Finally, we investigated the optical properties from ultraviolet to infrared wavelength region using ultraviolet-visible (UV-Vis) and Fourier transform infrared (FT-IR) spectrometry. Related to optical properties, ZnS/DLC core-shell nanowires exhibit relatively lower absorbance and higher IR transmittance than that of ZnS nanowires.

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Applications of diamond-like carbon thin films

Cited by 16 publications

References 30 publications

Nanostructured diamond coatings for orthopaedic applications

Nanostructured diamond coatings for orthopaedic applications

Synthesis of Multilayered DLC Films with Wear Resistance and Antiseizure Properties

Fabrication and Characterization of ZnS/Diamond-Like Carbon Core-Shell Nanowires

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