Microstructure and nanomechanical properties of pulsed excimer laser deposited DLC:Ag films: Enhanced nanotribological response

Constantinou, Marios; Pervolaraki, M.; Nikolaou, Panagiota; Prouskas, C.; Patsalas, P.; Kelires, P. C.; Giapintzakis, J.; Constantinides, Georgios

doi:10.1016/j.surfcoat.2016.11.084

Cited by 37 publications

(22 citation statements)

References 61 publications

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“…The main hindrance to further industrial exploitation of DLC films was poor scratch resistance which led to premature failure, primarily due to the high residual compressive stresses (in the GPa range) trapped during deposition and the ion subplantation process [ 8 ]. To circumvent this brittleness problem and allow for thicker and more stable films several recent studies proposed the doping of DLC with other elements [ 9 , 10 , 11 , 12 , 13 ]. Among the doping elements used were transition metals–typically termed metal containing hydrogenated amorphous carbon films, a–C:H:Me—or non-metal elements–typically termed as modified hydrogenated amorphous carbon films, a–C:H:X—such as silicon, oxygen, boron, nitrogen, and so forth.…”

Section: Introductionmentioning

confidence: 99%

Metal (Ag/Ti)-Containing Hydrogenated Amorphous Carbon Nanocomposite Films with Enhanced Nanoscratch Resistance: Hybrid PECVD/PVD System and Microstructural Characteristics

et al. 2018

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This study aimed to develop hydrogenated amorphous carbon thin films with embedded metallic nanoparticles (a–C:H:Me) of controlled size and concentration. Towards this end, a novel hybrid deposition system is presented that uses a combination of Plasma Enhanced Chemical Vapor Deposition (PECVD) and Physical Vapor Deposition (PVD) technologies. The a–C:H matrix was deposited through the acceleration of carbon ions generated through a radio-frequency (RF) plasma source by cracking methane, whereas metallic nanoparticles were generated and deposited using terminated gas condensation (TGC) technology. The resulting material was a hydrogenated amorphous carbon film with controlled physical properties and evenly dispersed metallic nanoparticles (here Ag or Ti). The physical, chemical, morphological and mechanical characteristics of the films were investigated through X-ray reflectivity (XRR), Raman spectroscopy, Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Transmission Electron Microscopy (TEM) and nanoscratch testing. The resulting amorphous carbon metal nanocomposite films (a–C:H:Ag and a–C:H:Ti) exhibited enhanced nanoscratch resistance (up to +50%) and low values of friction coefficient (<0.05), properties desirable for protective coatings and/or solid lubricant applications. The ability to form nanocomposite structures with tunable coating performance by potentially controlling the carbon bonding, hydrogen content, and the type/size/percent of metallic nanoparticles opens new avenues for a broad range of applications in which mechanical, physical, biological and/or combinatorial properties are required.

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Section: Introductionmentioning

confidence: 99%

Metal (Ag/Ti)-Containing Hydrogenated Amorphous Carbon Nanocomposite Films with Enhanced Nanoscratch Resistance: Hybrid PECVD/PVD System and Microstructural Characteristics

et al. 2018

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“…Ti [15,16] and Ag [17]. In the case of Ag, the sp 3 content decreased with Ag content, as seen in high resolution XPS spectra [18]. Evaluating the slope of the luminescence background of the Raman spectrum [19], a hydrogen content of the Zn-DLC samples of around 25-30 at.% can be calculated, which is increasing with Zn content.…”

Section: Film Structurementioning

confidence: 90%

“…For films containing up to 10 at.% ZnO particles the hardness was reported to be below 5 GPa [7]. The addition of silver to DLC films lowers the hardness, too [18,20].…”

Section: Hardnessmentioning

confidence: 99%

Properties of Zinc-containing Diamond-like Carbon Films Prepared by Plasma Source Ion Implantation

Hatada

Flege

Rimmler

et al. 2017

Trans. Mat. Res. Soc. Japan

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Zinc-containing diamond-like carbon films were prepared by a combination of magnetron sputtering of a zinc target and plasma source ion implantation and deposition in a hydrocarbon atmosphere. The effect of the preparation conditions on the film properties, such as surface morphology, film structure, Zn content, hardness and friction coefficient, was evaluated. A wide range of Zn contents can be realized, with films becoming rougher and softer with increasing Zn content. The films possess remarkable Zn-rich features as observed in SEM images. Depending on the Zn concentration, the features evolve from dots into more network-like structures.

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“…There were C-O bonds of 4.67% in the P-DLC¯lm and we con¯rmed that the presence of oxygen on the surface of the sample was related to some residual contaminations due to air exposure. 22,23 On the other hand, there were only few C¼O (or O-C¼O) bonds in the P-DLC¯lm, and we were sure that the fraction of 0.78% had resulted from the error of the¯tting.…”

Section: Xps Study Of The¯lmsmentioning

confidence: 96%

Optical Properties of the Rapid Annealed Oxygen-Doped Diamond-Like Carbon Film

Huang

Guo

et al. 2019

Surf. Rev. Lett.

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The amorphous oxygen-doped diamond-like carbon films were prepared by pulsed laser deposition. Compared with the pure diamond-like carbon film, there were much less graphite clusters on the surfaces of the oxygen-doped diamond-like carbon films, and the average transmission of the oxygen-doped diamond-like carbon films in the medium infrared band increased. However, some new absorption peaks in the infrared spectra of the oxygen-doped diamond-like carbon film were generated. Rapid annealing was experimented to remove the absorption peaks. XPS analysis showed that the fractions of the C–O and C=O bonds that generated the new absorption peaks were reduced more than the fractions of [Formula: see text] bonds by rapid annealing at 400[Formula: see text]C, and the absorption peaks in the medium infrared spectra decreased. It indicated that rapid annealing at right temperature during the right time could reduce greatly the absorption in the medium infrared band of oxygen-doped diamond-like carbon films.

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Microstructure and nanomechanical properties of pulsed excimer laser deposited DLC:Ag films: Enhanced nanotribological response

Cited by 37 publications

References 61 publications

Metal (Ag/Ti)-Containing Hydrogenated Amorphous Carbon Nanocomposite Films with Enhanced Nanoscratch Resistance: Hybrid PECVD/PVD System and Microstructural Characteristics

Metal (Ag/Ti)-Containing Hydrogenated Amorphous Carbon Nanocomposite Films with Enhanced Nanoscratch Resistance: Hybrid PECVD/PVD System and Microstructural Characteristics

Properties of Zinc-containing Diamond-like Carbon Films Prepared by Plasma Source Ion Implantation

Optical Properties of the Rapid Annealed Oxygen-Doped Diamond-Like Carbon Film

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