Adhesion and corrosion of Al–N doped diamond-like carbon films synthesized by filtered cathodic vacuum arc deposition

Wongpanya, Pornwasa; Silawong, Praphaphon; Photongkam, Pat

doi:10.1016/j.ceramint.2022.04.055

Cited by 10 publications

(5 citation statements)

References 77 publications

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“…The peaks centered at around 284.5, 285.2, 286.5, 287.1, and 288.5 eV in all the three types of DLC films correspond to the C=C (sp 2 -hybridized carbon atoms), C–C (sp 3 -hybridized carbon atoms), C–O (hydroxyl/ether), C=O (carbonyl), and O—C=O (carboxyl) bonds, respectively. 42 , 43 The evolution of oxidation reaction at the anodic silicon substrate occurs while depositing carbon radicals. The chemical bonding between carbon atoms and their native functionalization on the surface of the DLC films was quantified (as shown in Table 2 ) from the high-resolution C 1s spectra.…”

Section: Resultsmentioning

confidence: 99%

“…The decreasing trends in the intensity ratio of the D band to the G band, i.e., I D /I G were found to be 1.14, 1.10, and 0.66 in DLC 0.5 , DLC 1.0 , and DLC 1.5 , respectively, were attributed to the increasing order in the sp 3 content in the DLC patterns. 3,5,6,41 The lowest 42,43 The evolution of oxidation reaction at the anodic silicon substrate occurs while depositing carbon radicals. The chemical bonding between carbon atoms and their native functionalization on the surface of the DLC films was quantified (as shown in Table 2) from the high-resolution C 1s spectra.…”

Section: Physicochemical Studies Of Patterned Dlcmentioning

confidence: 99%

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Diamond-like Carbon Patterning by the Submerged Discharge Plasma Technique via Soft Solution Processing

et al. 2023

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Submerged plasma-assisted discharge direct patterning of diamond-like carbon (DLC) onto the silicon substrate in ambient conditions has succeeded as a new and novel soft solution process. In this environmentally benign technique, a copious amount of pure ethanol (ca. 4 mL) was locally activated with a maximum of ca. 0.23 mkWh by an aselectrochemically synthesized ultrasharp tungsten tip. With the assisted submerged plasma, the decomposed ethanol molecules are anodically patterned directly onto the silicon substrate in ambient conditions. The physical nature of DLC patterns was accessed by profilometry, atomic force microscopy, scanning electron microscopy, and transmission electron microscopy analysis. Furthermore, Fourier-transform infrared, Raman, and X-ray photoelectron spectra were analyzed for chemical compositions and structures, such as surface functionalization, carbon−carbon bonding, and sp 2 −sp 3 ratio, respectively. From a Berkovich-configured nanoindentation analysis, Young's modulus and hardness have shown increasing trend with increasing sp 3 −sp 2 ratio in DLC patterns of 68.5 and 2.8 GPa, respectively. From the electrochemical cyclovoltammetry analysis, a maximum areal specific capacitance of 205.5 μF/cm 2 has been achieved at a scan rate of 5 mV/s. The one-step, green, and environmentally sustainable approach of rapid formation of DLC patterns is thus a promising technique for various carbon-based electrode fabrication processes.

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Section: Resultsmentioning

confidence: 99%

Section: Physicochemical Studies Of Patterned Dlcmentioning

confidence: 99%

Diamond-like Carbon Patterning by the Submerged Discharge Plasma Technique via Soft Solution Processing

et al. 2023

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“…Huang et al (2023a) analyzed the tetrahedral carbon aluminum film using a large-scale atomic parallel simulator and observed that Al plays a significant role in the properties of the developed coating. Wongpanya et al (2022) synthesized a DLC coating with Al and N doping over AISI 4140 steel using the filtered cathodic vacuum-arc technique and observed that the corrosion resistance and adhesion performance of the developed coating significantly enhanced compared to those of DLC coating.…”

Section: Introductionmentioning

confidence: 99%

A temperature-based synthesis and characterization study of aluminum-incorporated diamond-like carbon thin films

Ghadai,

Shanmugasundar,

Cepova

et al. 2023

Front. Mech. Eng.

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The present work deals with the study of various properties of aluminum (Al)-incorporated diamond-like carbon (DLC) thin films synthesized using the atmospheric pressure chemical vapor deposition (APCVD) technique by varying the deposition temperature (Td) and keeping the N2 flow rate constant. Surface morphology analysis, resistance to corrosion, nanohardness (H), and Young’s modulus (E) of the coatings were carried out using atomic force microscopy (AFM), corrosion test, scanning electron microscopy (SEM), and nanoindentation test, respectively. SEM results showed a smoother surface morphology of the coatings grown at different process temperatures. With an increase in process temperature, the coating roughness (Ra) lies in the range of 20–36 µm. The corrosion resistance of the coating was found to be reduced with a consecutive increase in the deposition temperature from 800℃ to 880℃. However, above 880℃, the resistance increases further, and it may be due to the presence of more Al weight percentage in the coating. The nanoindentation result revealed that H and E of the coating increase with an increase in the CVD process temperature. The elastic–plastic property indicated by H/E and H3/E2, which are also indicators of the wear properties of the coating, were studied using the nanoindentation technique. The residual stresses (σ) calculated using Stoney’s equation revealed a reduction in residual stress with an increase in the process temperature.

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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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Adhesion and corrosion of Al–N doped diamond-like carbon films synthesized by filtered cathodic vacuum arc deposition

Cited by 10 publications

References 77 publications

Diamond-like Carbon Patterning by the Submerged Discharge Plasma Technique via Soft Solution Processing

Diamond-like Carbon Patterning by the Submerged Discharge Plasma Technique via Soft Solution Processing

A temperature-based synthesis and characterization study of aluminum-incorporated diamond-like carbon thin films

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

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