Bactericidal silver-doped DLC coatings obtained by pulsed filtered cathodic arc co-deposition

Prat, Jordi Orrit; Bonet, Raül; Rupérez, Elisa; Punset, Miquel; Ortiz-Hernández, Mónica; Guillem-Marti, Jordi; Lousa, A.; Cano, D.L.; Dı́az, Cristina; Fuentes, G. G.; Caro, J.

doi:10.1016/j.surfcoat.2021.126977

Cited by 26 publications

(14 citation statements)

References 55 publications

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“…The microparticles generated by the arc discharge on the graphite cathode that have reached the substrate have been segregated towards the surface during the growth of the coating. The same phenomenon was already observed in a previous work related to the growth of silver-doped DLC coatings using a similar experimental setup [9].…”

Section: Resultssupporting

confidence: 87%

Super-Hard DLC Coatings as an Alternative to Polycrystalline Diamond for Cutting Tools: Predictive Analysis of Aluminium Alloy Surface Quality

Ramírez

Castro²,

Prat

et al. 2022

Lubricants

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The use of lightweight materials, such as ultra-high-strength aluminium alloys, is in high demand in the automotive and aerospace industries where weight savings are critical. The tool materials used for high-speed cutting of these aluminium alloys are subjected to severe conditions that promote premature failure of cutting tools. The application of polycrystalline diamond (PCD) coatings provides cutting tools with increased mechanical and thermal fatigue resistance and improved tribological performance. Despite these good properties, their high cost remains a major limitation in this sector. Super-hard Diamond-Like Carbon (DLC) coatings offer a technologically and economically feasible alternative to PCD-coated tools for cutting and machining non-ferrous materials. In this paper, the machining performance of coated and un-coated hard metal inserts in the turning of 7075 aluminium alloy has been explored. The surface quality of machined parts, the cutting tool wear resistance and the vibrations generated during turning of un-coated, PCD and super-hard thin DLC coatings on tungsten carbide inserts were compared. The results obtained demonstrate that DLC coatings are a potentially interesting alternative to PCD coatings for machining ultra-high-strength aluminium alloys, where surface component finish is a key factor.

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Section: Resultssupporting

confidence: 87%

Super-Hard DLC Coatings as an Alternative to Polycrystalline Diamond for Cutting Tools: Predictive Analysis of Aluminium Alloy Surface Quality

Ramírez

Castro²,

Prat

et al. 2022

Lubricants

Self Cite

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“…Carbon coatings have been used to increase surface electronegativity and prevent thrombus formation [58]. Diamond-like carbon (DLC) coatings possess biocompatibility [59], noncytotoxic [60], hardness [61], and wear resistance [62]. Thus, they have been used for loadbearing and non-load-bearing invasive artificial implants.…”

Section: Essential Factors For Composite Vascular-graft Designmentioning

confidence: 99%

Structural design and mechanical performance of composite vascular grafts

Zia

Liu

2022

Bio-des. Manuf.

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This study reviews the state of the art in structural design and the corresponding mechanical behaviours of composite vascular grafts. We critically analyse surface and matrix designs composed of layered, embedded, and hybrid structures along the radial and longitudinal directions; materials and manufacturing techniques, such as tissue engineering and the use of textiles or their combinations; and the corresponding mechanical behaviours of composite vascular grafts in terms of their physical–mechanical properties, especially their stress–strain relationships and elastic recovery. The role of computational studies is discussed with respect to optimizing the geometrics designs and the corresponding mechanical behaviours to satisfy specialized applications, such as those for the aorta and its subparts. Natural and synthetic endothelial materials yield improvements in the mechanical and biological compliance of composite graft surfaces with host arteries. Moreover, the diameter, wall thickness, stiffness, compliance, tensile strength, elasticity, and burst strength of the graft matrix are determined depending on the application and the patient. For composite vascular grafts, hybrid architectures are recommended featuring multiple layers, dimensions, and materials to achieve the desired optimal flexibility and function for complying with user-specific requirements. Rapidly emerging artificial intelligence and big data techniques for diagnostics and the three-dimensional (3D) manufacturing of vascular grafts will likely yield highly compliant, subject-specific, long-lasting, and economical vascular grafts in the near-future. Graphic abstract

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“…Moreover, this type of coating is characterized by high hardness, a low friction coefficient, chemical inertness, good corrosion resistance, infrared transparency, a high refractive index, and excellent smoothness. However, several disadvantages, such as low thermal stability and high internal stress causing deficient adhesion, limit the usefulness of DLC coatings [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Diamond-like Carbon Coatings for Biomedical Applications—A Review

2023

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Diamond-like carbon (DLC) films are generally used in biomedical applications, mainly because of their tribological and chemical properties that prevent the release of substrate ions, extend the life cycle of the material, and promote cell growth. The unique properties of the coating depend on the ratio of the sp3/sp2 phases, where the sp2 phase provides coatings with a low coefficient of friction and good electrical conductivity, while the share of the sp3 phase determines the chemical inertness, high hardness, and resistance to tribological wear. DLC coatings are characterized by high hardness, low coefficient of friction, high corrosion resistance, and biocompatibility. These properties make them attractive as potential wear-resistant coatings in many compelling applications, including optical, mechanical, microelectronic, and biomedical applications. Another great advantage of DLC coatings is that they can be deposited at low temperatures on a variety of substrates and can thus be used to coat heat-sensitive materials, such as polymers. Coating deposition techniques are constantly being improved; techniques based on vacuum environment reactions are mainly used, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD). This review summarizes the current knowledge and research regarding diamond-like carbon coatings.

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Bactericidal silver-doped DLC coatings obtained by pulsed filtered cathodic arc co-deposition

Cited by 26 publications

References 55 publications

Super-Hard DLC Coatings as an Alternative to Polycrystalline Diamond for Cutting Tools: Predictive Analysis of Aluminium Alloy Surface Quality

Super-Hard DLC Coatings as an Alternative to Polycrystalline Diamond for Cutting Tools: Predictive Analysis of Aluminium Alloy Surface Quality

Structural design and mechanical performance of composite vascular grafts

Preparation and Characterization of Diamond-like Carbon Coatings for Biomedical Applications—A Review

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