A comparative study of surface morphology, mechanical and tribological properties of DLC films deposited on Cr and Ni nanolayers

Shahsavari, Fatemeh; Ehteshamzadeh, Maryam; Amin, Mohamad Hassan; Barlow, Anders J.

doi:10.1016/j.ceramint.2019.10.251

Cited by 37 publications

(12 citation statements)

References 74 publications

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“…In addition, by comparing the FWHM value of the G peak in Raman spectra, the sample with the NiP-SiC interlayer shows the highest value. This parameter indicates structural disorder in DLC films and is commensurate with their mechanical properties [19,26,28]. These changes represent that the DLC/NiP-SiC samples have the highest ratio of sp 3 (C–C) to sp 2 (C=C) bonds.…”

Section: Resultsmentioning

confidence: 99%

“…The hardness and modulus value of DLC/NiP and DLC/NiP-SiC were determined using two vertical loads of 500, 1000, and 2000 μN, as shown in Figure 6. The choice of these loads was based on indenter penetration depth, which should be less than 10% of the final layer thickness, to avoid the effect of the substrate in measuring hardness [28,29]. Since high hardness and high stiffness materials exhibit higher wear resistance behaviour [30], better wear resistance and adhesion strength were observed in the DLC in the presence of NiP-SiC nanocomposite interlayer than the DLC/NiP sample.…”

Section: Resultsmentioning

confidence: 99%

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Nano-scratch and nano-indentation study of diamond-like carbon/NiP-SiC nanocomposite bilayer

Samani

Ghasemi

Khodaei

2021

Materials Science and Technology

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To overcome the poor adhesion of diamond-like carbon (DLC) films to the steel substrate, an interlayer can be used. In this study, the effect of the addition of NiP-SiC nanocomposite coating as an interlayer in comparison to the NiP coating has been investigated on tribological properties of the DLC layer. Using nano-scratch and nano-indentation tests, the mechanical and nanotribological behaviour of the DLC layers, such as scratch resistance, coefficient of friction, interfacial adhesion between DLC layer and substrate, and hardness were characterised. DLC/NiP-SiC samples showed higher adhesion, hardness, elastic modulus, and lower friction coefficient. These results reveal the improved tribological properties of DLC film by applying the NiP-SiC nanocomposite interlayer in comparison to using the pure NiP interlayer.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Nano-scratch and nano-indentation study of diamond-like carbon/NiP-SiC nanocomposite bilayer

Samani

Ghasemi

Khodaei

2021

Materials Science and Technology

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“…The intensity ratio of the D and G peaks ( I D /I G ) can also be used as a parameter to estimate the relative content of sp 2 and sp 3 hybrid bonds. [ 23 ] The lower the I D /I G ratio, the larger the proportion of sp 3 hybridized carbon. Figure 1 shows the Raman spectra of the undoped DLC film and the B, Ni co‐doped DLC films with 0.03 g/350 ml of B and 0.01–0.09 g/350 ml of Ni.…”

Section: Resultsmentioning

confidence: 99%

Electrodeposition of B, Ni co‐doped diamond‐like carbon films on AZ91D magnesium alloy: Corrosion and wear resistance

Sun

Dong

et al. 2020

Materials & Corrosion

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Diamond‐like carbon (DLC) possesses brilliant and excellent properties, including excellent corrosion resistance as well as outstanding wear resistance. Ni and B co‐doped DLC films were deposited on AZ91D magnesium alloy by electrodeposition under mild conditions (300 V and 25°C). Uniform and dense morphology of co‐doped DLC films were observed, and Ni and B were uniformly incorporated into the carbon‐based films. Among all the electrodeposits, the appearance of D and G peaks near 1330 and 1570 cm−1 revealed that the as‐deposited films were typical DLC films. As the addition of Ni was increased to 0.05 g, the highest microindentation hardness, the lowest friction coefficient, and wear loss were achieved to be 164.5 HV, 0.3, and 0.6 × 10−5 kg/m, respectively. The amorphous carbon films fabricated at 0.05 g Ni had the lowest corrosion current density and the most positive corrosion potential, which was mainly due to the small and dense granular structure effectively hindering the penetration of corrosion media.

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“…[31,32] Nonetheless, the residual stress caused by the high cross-linking of sp 3 hybrid bonds and the poor bond strength because of the inhomogeneous structure restricted its performance and further engineering applications. [33] Based on the efforts of various researchers, doping different elements into DLC films to reduce the residual stress in the films and enhance the tribological properties of the films is one of the effective methods. It is strongly recommended that elements such as N, [34,35] B, [36] Ni, [37] Si, [38] Cr, [39] and Ti, [40] and compounds such as MoS 2 [41] and WS 2 [42] should be introduced into DLC films to improve the microstructure and properties of the films.…”

Section: Introductionmentioning

confidence: 99%

Effect of Poly Dimethyl Diallyl Ammonium Chloride‐Multiwalled Carbon Nanotubes Concentration on the Microstructure and Friction Behavior of Co‐Doped Diamond‐Like Carbon Films

et al. 2023

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A kind of wear-resistant diamond-like carbon (DLC) films doped with Ni, N, and multiwalled carbon nanotubes (MWCNTs) are synthesized on Ti-6Al-4V titanium alloy by a combined method of pulsed electrodeposition and liquid-phase electrodeposition. The effect of different concentrations of MWCNTs on the microstructure and friction mechanism of Co-DLC films is investigated. The results show that the polydimethyl diallyl ammonium chloride (PDDA)-MWCNTs complex tend to deposit parallel to the substrate. Benefiting from the "bridging" effect of the MWCNTs between the cluster structures, it effectively reduces the protrusions on the surface of the films. When the concentration of MWCNTs is 0.06 g L À1 , the surface microstructure of the films is uniform and dense, and the films present a low I D /I G value (0.57) and a high sp 3 -C content. The Raman and X-ray photoelectron spectroscopy patterns reveal that the Ni/N/MWCNTs-DLC films are typical amorphous carbon films. Furthermore, the micro-indentation hardness of the Co-DLC films reaches 513.24 HV. The lubricated Ni/N/MWCNTs-DLC films significantly improve the frictional wear properties of the titanium alloy surface, which is mainly attributed to the homogeneous and dense structure and the low friction coefficient (0.146) and wear loss (1.40 Â 10 À5 kg m À1 ).

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A comparative study of surface morphology, mechanical and tribological properties of DLC films deposited on Cr and Ni nanolayers

Cited by 37 publications

References 74 publications

Nano-scratch and nano-indentation study of diamond-like carbon/NiP-SiC nanocomposite bilayer

Nano-scratch and nano-indentation study of diamond-like carbon/NiP-SiC nanocomposite bilayer

Electrodeposition of B, Ni co‐doped diamond‐like carbon films on AZ91D magnesium alloy: Corrosion and wear resistance

Effect of Poly Dimethyl Diallyl Ammonium Chloride‐Multiwalled Carbon Nanotubes Concentration on the Microstructure and Friction Behavior of Co‐Doped Diamond‐Like Carbon Films

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