Nanomechanical properties and thermal stability of Al–N-co-doped DLC films prepared by filtered cathodic vacuum arc deposition

Wongpanya, Pornwasa; Silawong, Praphaphon; Photongkam, Pat

doi:10.1016/j.surfcoat.2021.127655

Cited by 17 publications

(3 citation statements)

References 82 publications

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“…Conversely, diamond is characterized by a distinct Raman peak at 1322 cm −1 , which originates from the T 2g symmetric vibration mode, signifying the presence of sp 3 C-C hybrid bonds. The disruption of long-range order leads to the emergence of a peak around 1360 cm −1 , known as the D peak, which is attributed to phonon dissipation at the boundary of the Brillouin zone [30][31][32]. The emergence of the D peak is indicative of disorder within the sp 2 hybridized bond angles, suggesting the presence of sp 2 hybridized carbon structures composed of graphite rings.…”

Section: Structure and Compositionmentioning

confidence: 99%

Optimized Tribological Performance of Nitrogen-Doped Diamond-like Carbon Films on NBR: Influence of Bias Voltage of DC Magnetron Sputtering

Yang,

Han,

Deng

et al. 2024

Nanomaterials

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In this research, nitrogen-doped diamond-like carbon (N-DLC) coatings were deposited on Nitrile Butadiene Rubber (NBR) substrates using direct current magnetron sputtering (DC-MS) under varying bias voltages. This study aimed to explore environmentally friendly, low-wear, and non-lubricating seal coatings to enhance the durability of rubber sealing products, which predominantly operate under dynamic sliding conditions. By reducing the coefficient of friction (CoF), the friction and wear on rubber products can be significantly minimized, extending their lifespan. This investigation thoroughly examined the microstructure, mechanical properties, and tribological behavior of the N-DLC films. Among the coatings, the one produced at a bias voltage of −50 V demonstrated superior hardness, elastic modulus, and the lowest CoF in comparison to those prepared with 0, −100, and −200 bias voltages. This optimal combination of properties resulted in an exceptionally low wear rate of 10−9 for the film deposited at −50 V, indicating its outstanding wear resistance.

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Section: Structure and Compositionmentioning

confidence: 99%

Optimized Tribological Performance of Nitrogen-Doped Diamond-like Carbon Films on NBR: Influence of Bias Voltage of DC Magnetron Sputtering

Yang,

Han,

Deng

et al. 2024

Nanomaterials

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show abstract

“…For diamond, the characteristic Raman peak is located at 1322 cm −1 , which is derived from the T 2g symmetrical vibration mode, and it is a sign of the existence of sp 3 C-C hybrid bonds. When the long-range order is broken, a peak will appear around 1360 cm −1 , which is caused by the dissipation of the Brillouin zone boundary phonon, which becomes the D peak [28][29][30]. The appearance of the D peak expresses the disorder of the sp 2 hybrid bond angle, which is a sign that the sp 2 hybrid carbon is composed of a graphite ring.…”

Section: Structure and Compositionmentioning

confidence: 99%

The Study of Surface Structure and the Tribological Property of DLC-Modified NBR Elastomers Using DC-MS

Wang

et al. 2023

Coatings

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The DLC film was prepared on a nitrile rubber (NBR) elastomer by DC magnetron sputtering (DC-MS), and the sp3 ratio of the DLC film was adjusted by changing the negative bias voltage applied to the substrate. The microstructure, composition, and tribological properties of the DLC films deposited on NBR substrates were systematically investigated. The results reveal that the DLC film on the NBR surface can protect the NBR and reduce the surface roughness of the NBR. While the bias voltage ranges from 0 V to −150 V, the content of sp3 increases with an increase in the negative bias voltage. The viscoelasticity and roughness of the NBR substrate will greatly affect the DLC film’s adhesion strength and tribological behavior.

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“…Ti, Cr, W, Nb, Mo, and Zr as well as the non-carbide formers Ag, Cu, and Al have been investigated as doping choices to enable a reduction in the high internal residual stress and to enhance adhesion, thermal stability, corrosion resistance, and biocompatibility [2,9,11,[14][15][16][17]. Tungsten is the most researched metallic element among those chosen for doping as a result of its potential to modify the tribological behavior of DLC under high temperatures [4,13].…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Doped DLC Coatings in the Presence of Ionic Liquid Additive under Different Lubrication Regimes

et al. 2023

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Diamond-like carbon (DLC) coatings are widely used in industries that require high durability and wear resistance, and low friction. The unique characteristics of DLC coatings allow for the possibility of creating adsorption sites for lubricant additives through the doping process. In this study, the combined use of europium-doped diamond-like carbon (Eu-DLC), gadolinium-doped diamond-like carbon (Gd-DLC), and pure DLC coatings and an ionic liquid (IL) additive, namely, trihexyltetradecylphosphonium bis (2-ethylhexyl) phosphate [P66614] [DEHP], with a 1 wt.% concentration in polyalphaolefin (PAO) 8 as a base lubricant was investigated. Higher hardness, higher thin-film adhesion, a higher ratio of hardness to elastic modulus, and a higher plastic deformation resistance factor were achieved with the Gd-DLC coating. The CoF of the Gd-DLC coating paired with the IL was superior compared to the other pairs in all lubrication regimes, and the pure DLC coating had a better performance than the Eu-DLC coating. The wear could not be quantified due to the low wear on the surface of the DLC coatings. The friction reduction demonstrates that tribological systems combining Gd-DLC thin films with an IL can be a potential candidate for future research and development efforts to reduce friction and increase the efficiency of moving parts in internal combustion engines, for instance.

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Nanomechanical properties and thermal stability of Al–N-co-doped DLC films prepared by filtered cathodic vacuum arc deposition

Cited by 17 publications

References 82 publications

Optimized Tribological Performance of Nitrogen-Doped Diamond-like Carbon Films on NBR: Influence of Bias Voltage of DC Magnetron Sputtering

Optimized Tribological Performance of Nitrogen-Doped Diamond-like Carbon Films on NBR: Influence of Bias Voltage of DC Magnetron Sputtering

The Study of Surface Structure and the Tribological Property of DLC-Modified NBR Elastomers Using DC-MS

Tribological Behavior of Doped DLC Coatings in the Presence of Ionic Liquid Additive under Different Lubrication Regimes

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