Tribological and Electrical Properties of Chromium-Doped Carbon Films Fabricated by Unbalanced Magnetron Sputtering for Medical Stents

Kang, Ki-noh; Lee, Jaehyeong; Lee, Kang Yeon; Park, Yong Seob

doi:10.1166/jnn.2019.16201

Cited by 3 publications

(1 citation statement)

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“…Among the techniques for the production of coatings, sputtering is considered a very versatile and green methodology. Specifically, in the area of tribology, the deposition of diamond-like coatings (DLC) [24][25][26] and doped amorphous carbon coatings (d-aC) [27][28][29] are widely reported. However, the properties of DLC, particularly the mechanical ones, are not compatible with softer substrates such as copper.…”

Section: Introductionmentioning

confidence: 99%

Influence of Carbyne Content on the Mechanical Performance of Nanothick Amorphous Carbon Coatings

Piedade

Cangueiro

2020

Nanomaterials

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This study concerns the evaluation of the coefficient of friction, at different temperatures, of amorphous carbon thin films, deposited onto nanocrystalline sputtered copper coatings by clean-technology rf magnetron sputtering. The aim is to access the capacity of carbon thin films, with different contents of sp2 and sp1 bonds, to act as a solid lubricant for copper surfaces. Raman spectroscopy revealed that all the as-deposited coatings consist of amorphous carbon with low defect content and decreasing carbyne concentration with increasing thickness. The tribological tests at 25 °C and 200 °C revealed that, for the higher temperature, the 15 nm carbon coating present 0.001 friction coefficients at 2 N load. Overall, the study presents a one-step technology for the greener production of solid lubrication systems for micro- and nano-components, avoiding the environmental impact of lubricants.

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Section: Introductionmentioning

confidence: 99%

Influence of Carbyne Content on the Mechanical Performance of Nanothick Amorphous Carbon Coatings

Piedade

Cangueiro

2020

Nanomaterials

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Investigation of hydrophobic and anti-corrosive behavior of Cr-DLC film on stainless steel bipolar plate

Wang

et al. 2022

Diamond and Related Materials

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Coatings Functionalization via Laser versus Other Deposition Techniques for Medical Applications: A Comparative Review

et al. 2022

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The development of new biological devices in response to market demands requires continuous efforts for the improvement of products’ functionalization based upon expansion of the materials used and their fabrication techniques. One viable solution consists of a functionalization substrate covered by layers via an appropriate deposition technique. Laser techniques ensure an enhanced coating’s adherence to the substrate and improved biological characteristics, not compromising the mechanical properties of the functionalized medical device. This is a review of the main laser techniques involved. We mainly refer to pulse laser deposition, matrix-assisted, and laser simple and double writing versus some other well-known deposition methods as magnetron sputtering, 3D bioprinting, inkjet printing, extrusion, solenoid, fuse-deposition modeling, plasma spray (PS), and dip coating. All these techniques can be extended to functionalize surface fabrication to change local morphology, chemistry, and crystal structure, which affect the biomaterial behavior following the chosen application. Surface functionalization laser techniques are strictly controlled within a confined area to deliver a large amount of energy concisely. The laser deposit performances are presented compared to reported data obtained by other techniques.

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Tribological and Electrical Properties of Chromium-Doped Carbon Films Fabricated by Unbalanced Magnetron Sputtering for Medical Stents

Cited by 3 publications

References 0 publications

Influence of Carbyne Content on the Mechanical Performance of Nanothick Amorphous Carbon Coatings

Influence of Carbyne Content on the Mechanical Performance of Nanothick Amorphous Carbon Coatings

Investigation of hydrophobic and anti-corrosive behavior of Cr-DLC film on stainless steel bipolar plate

Coatings Functionalization via Laser versus Other Deposition Techniques for Medical Applications: A Comparative Review

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