Characterization of DC magnetron sputtered diamond-like carbon (DLC) nano coating

Yeldose, Binu C.; Ramamoorthy, B.

doi:10.1007/s00170-007-1131-8

Cited by 26 publications

(8 citation statements)

References 32 publications

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“…Voevodin et al [16][17][18] have extensively studied various architectures of multilayer composite coatings with super hard a-C:H layers for wear protection at high contact loads. The use of a multilayer structure improves the adhesion of coatings to the substrates due to the inter layer present in the structures, which in turn minimizes the differences between the substrate and the coatings.…”

Section: Introductionmentioning

confidence: 99%

Studies of nanostructured copper/hydrogenated amorphous carbon multilayer films

Dwivedi¹,

Kumar²,

Ishpal³

et al. 2011

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Studies of nanostructured copper/hydrogenated amorphous carbon multilayer films

Dwivedi¹,

Kumar²,

Ishpal³

et al. 2011

Journal of Alloys and Compounds

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“…Voevodin et al [48] have obtained a friction value of 0.13 for Ti-TiC-DLC gradient films against steel ball. The study of Yeldose and Ramamoorthy [49] has revealed that the Ti, TiN, DLC multi-layer coating has a friction coefficient of 0.4. Dörfel et al [50] have noted a friction value of 0.4 against tool steel for Ti(CN) coating in reciprocating sliding tests.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Ti-CN-a: C films prepared by pulsed-dc bias sputtering

Bülbül

Efeoğlu

2010

Proceedings of the Institution of Mechanical Engineers, Part J:

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The incapable side of diamond-like carbon films is low adhesion, resulting from high internal stress. The incorporation of buffer layers into the coating structure to relieve stress and to allow crack energy dissipation by plastic deformation in the crack tip is an effective route for improving toughness. Although this approach will result in a partly decreased coating hardness, the gain in tribological properties is more preferred for many applications. In graded coatings, design and joining of the functional regions including sharp interfaces between layers are very important. The desirable properties can provide only through appropriate transition regions produced by using appropriate deposition methods. In this study, Ti-CN-a:C films were deposited on AISI M2 steel substrates by closed-field unbalanced magnetron sputtering using pulsed-dc biasing, and hardness, crystallography, wear, and adhesion properties of the film were investigated. Accordingly, Ti-CN-a:C films grown exhibited an increase of about 30 per cent in hardness according to that of the substrate and low (μ ∼ 0.1) and stable friction and good adhesion (L c = 43 N), whereas the crystallographic development of the film was amorphous. These properties obtained were attributed to using of CN transient layer and pulsed-dc magnetron sputtering technology.

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“…Applications of this coating can be self-lubricating devices 1 , micro-electromechanical 2 , read-write heads 3,4 and biomedical prosthetic implants 5 . DLC coatings can be made by different deposition methods such as magnetron sputtering 6 and chemical vapor deposition 7 . The difficulty of DLC adhesion is due its high residual internal stress during formation [8][9][10] , however, another problem is the thermal expansion coefficients of DLC, 1 × 10 -6 /K, while the steel is ~11.8 × 10 -6 -14.7 × 10 -6 /K.…”

Section: Introductionmentioning

confidence: 99%

XPS, XRD and laser raman analysis of surface modified of 6150 steel substrates for the deposition of thick and adherent diamond-like carbon coatings

2013

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Although the 6150 steel has an excellent fatigue and impact resistance, it is unsuitable to operate it when the corrosion is a limited factor. We propose here a sequence of steel pre-treatment by carburizing, carbonitriding and nitriding in order to improve the poor adhesion between Diamond Like-Carbon coatings on steel. This sequence is our attempt to reduce the difference between the coefficients of thermal expansion of steel and DLC through the graded interface. This work demonstrates the quantitative analysis of the molecules present at surface using X-ray photoelectron spectroscopy. The crystallographic structures are investigated by X-ray diffraction which shows the formation of carbides and nitride phases. Raman spectroscopy reveals the carburizing surface characteristics where DLC coating is nucleated and grown at the substrate. At the end of the analysis it is possible to verify which molecules and phases are formed on the steel surface interface after each step of pre-treatment.

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Characterization of DC magnetron sputtered diamond-like carbon (DLC) nano coating

Cited by 26 publications

References 32 publications

Studies of nanostructured copper/hydrogenated amorphous carbon multilayer films

Studies of nanostructured copper/hydrogenated amorphous carbon multilayer films

Characterization of Ti-CN-a: C films prepared by pulsed-dc bias sputtering

XPS, XRD and laser raman analysis of surface modified of 6150 steel substrates for the deposition of thick and adherent diamond-like carbon coatings

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