Electrical properties of multilayer (DLC-TiC) films produced by pulsed laser deposition

Alawajji, Raad A.; Kannarpady, Ganesh K.; Nima, Zeid A.; Kelly, Nigel; Watanabe, Fumiya; Biris, Alexandru S.

doi:10.1016/j.apsusc.2017.08.058

Cited by 30 publications

(4 citation statements)

References 43 publications

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“…And was composed of the overlapped D peak (centered at 1350 cm −1 ) and the G peak (centered at 1580 cm −1 ) corresponding to the A1g and E2g vibrational modes of graphite respectively [26]. The peaks at 265 and 600 cm −1 are associated with the TiC crystal [27]. And the intensity of these peaks increases with sputtering current of graphite, which indicating the quality of the TiC crystal has been improved.…”

Section: Resultsmentioning

confidence: 97%

Structure and Characterization of TiC/GLC Multilayered Films with Various Bilayers Periods

et al. 2021

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The spontaneously self-organizing multilayered graphite-like carbon (denoted as GLC) /TiC films with various bilayer periods in the range of 13.3–17.5 nm were deposited on silicon and 1Cr18Mn8Ni5N stainless steel substrates using closed field magnetron sputtering deposition facility. The microstructures and chemical compositions of the prepared multilayered films were characterized by scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy respectively. The self-organizing multilayered structures in all of the films consisted of titanium carbide layers and sp2-rich carbon layers periodically alternate arrangement. The TiC contents and bilayer periods of the multilayered films can be controlled by means of adjusting of sputtering current of graphite target. Furthermore, the mechanical and tribological performances of the prepared films were appraised by nano-indentor, scratch measures, and ball-on-plate tribometer respectively. The results indicated that multilayer structure endowed the as-deposited TiC/GLC films outstanding mechanical and tribological properties, especially the multilayer film with 15.9 nm bilayer period deposited at 10 A sputtering current showed the excellent adhesion strength and hardness; Simultaneously it also exhibited the lowest average friction coefficient in the humid environment owing to its high content of sp2 hybrid carbon.

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Section: Resultsmentioning

confidence: 97%

Structure and Characterization of TiC/GLC Multilayered Films with Various Bilayers Periods

et al. 2021

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“…Finally, providing additional energy to C adatoms by heating the substrate has also been tested, and proved ineffective at increasing the sp 3 fraction, as it appears to not only increase the film graphitization but also degrade its mechanical properties and surface quality [87][88][89][90][91][92]. As will be described in Section 4, in fact, this is an effective method to maximize the sp 2 fraction of the deposited films, which is undesirable in DLC but highly beneficial when the goal is depositing graphenic materials.…”

Section: Additional Sources Of Energymentioning

confidence: 99%

Pulsed Laser Deposition of Carbon-Based Materials: A Focused Review of Methods and Results

Gaudiuso

2023

Processes

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Pulsed Laser Deposition (PLD) is a highly flexible experimental methodology for the growth of thin films of a broad variety of materials, based on the generation of laser-induced plasmas (LIP) with material ablated from a solid target and on the transfer of the ablated material to a substrate. This review is focused on carbon-based materials—specifically, diamond-like carbon (DLC), graphene and carbyne—and will both discuss the influence of the most critical experimental parameters on the obtained materials and present the experimental developments proposed in the recent literature to tailor the properties of the deposited films and optimize the standard PLD technique for production of various carbon-based materials.

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“…Consequently, the grain size decreases first and then increases with increasing bias voltage. [26,27]. The Ti 2p XPS spectra can be fitted into four peaks: the peaks at 453.6 eV and 459.3 eV are assigned to Ti-C bonds, the peak at 454.7 eV is identified as non-stoichiometric TiC x , and the peak located at 456.8 eV is assigned to Ti-O/T=O bond [28,29].…”

Section: Characteristics Of Ti-dlc Coatingmentioning

confidence: 99%

“…As seen, there are two obvious peaks located at 281.8 eV and 284.6 eV of the C1s spectrum, which correspond to C in TiC and a-C:H, respectively. C 1s spectra is deconvoluted into five peaks at 281.8, 282.6, 284.6, 285.6, and 288.6 eV, which are assigned to Ti-C, Ti-C*, sp 2 C, sp 3 C, and C=O, respectively, and the Ti-C* represent the non-stoichiometric TiC x[26,27]. The Ti 2p XPS spectra can be fitted into four peaks: the peaks at 453.6 eV and 459.3 eV are assigned to Ti-C bonds, the peak at 454.7 eV is identified as non-stoichiometric TiC x , and the peak located at 456.8 eV is assigned to Ti-O/T=O bond[28,29].…”

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confidence: 99%

Enhanced Anti-Tribocorrosion Performance of Ti-DLC Coatings Deposited by Filtered Cathodic Vacuum Arc with the Optimization of Bias Voltage

et al. 2022

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To improve the anti-tribocorrosion property, and decrease the metal dissolution and wear of stainless-steel components caused by the synergistic action of corrosion and friction in marine environments, Ti-DLC coatings were obtained on steel substrate using a filtered cathodic vacuum arc (FCVA) system by adjusting bias voltage. The structure, mechanical properties, corrosion, and tribocorrosion behavior were investigated. Increasing the bias voltage from −50 V to −300 V, Ti content decreased from 23.9 to 22.5 at.%, and grain size decreased first, and then increased. Obvious TiC grains embedded in the amorphous carbon matrix were observed in the coating from the TEM result. Hardness increased from 30.23 GPa to 34.24 GPa with an increase in bias voltage from −50 to −200 V. The results of tribocorrosion testing showed that the Ti-DLC coatings at −200 V presented the best anti-tribocorrosion performance with the smallest friction coefficient of 0.052, wear rate of 2.48 × 10−7 mm3/N∙m, and high open-circuit potential, which is mainly due to the dense structure, high value of H/E* and H3/E*2, and great corrosion resistance. Obtained results suggest that the Ti-DLC coating with nanocomposite structure is a potential protective material for marine equipment.

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Electrical properties of multilayer (DLC-TiC) films produced by pulsed laser deposition

Cited by 30 publications

References 43 publications

Structure and Characterization of TiC/GLC Multilayered Films with Various Bilayers Periods

Structure and Characterization of TiC/GLC Multilayered Films with Various Bilayers Periods

Pulsed Laser Deposition of Carbon-Based Materials: A Focused Review of Methods and Results

Enhanced Anti-Tribocorrosion Performance of Ti-DLC Coatings Deposited by Filtered Cathodic Vacuum Arc with the Optimization of Bias Voltage

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