Enhancement of tribological properties of DLC by incorporation of amorphous titanium using magnetron sputtering process

Dhandapani, Vishnu Shankar; Kang, Kyoung Mo; Seo, Kuk Jin; Kim, Dae Eun

doi:10.1016/j.ceramint.2019.03.090

Cited by 23 publications

(10 citation statements)

References 49 publications

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“…%), titanium carbide (TiC) nanoparticles are formed, which positively affects the friction characteristics, while at higher concentrations of titanium has a negative effect [8,9]. The presence of Ti in an amorphous form leads to an increased content of the carbon sp 2 bond and a reduced internal stress, which also contributes to the improvement of tribological characteristics [10]. Diamond-like carbon coatings doped with Ti (no more than 0.46 wt.…”

Section: Introductionmentioning

confidence: 99%

Effect of sp3–sp2 Transformation on the Wear Rate of the DLC Coating

et al. 2022

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Based on the methods of non-equilibrium thermodynamics, it was found that the implementation of spontaneous processes with positive entropy production during friction leads to an increase in the wear intensity. Non-spontaneous processes with negative entropy production lead to a decrease in wear intensity. The tribological characteristics of diamond-like carbon (DLC) with different silicon content were studied. The wear intensity practically does not correlate with the friction coefficient. It is shown that DLC with the highest content of diamond-like inclusions (sp3) in the coating has the highest wear rate. In the same DLC, the most intense sp3–sp2 transformation during friction was observed. The sp3–sp2 transformation is a spontaneous process.

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Section: Introductionmentioning

confidence: 99%

Effect of sp3–sp2 Transformation on the Wear Rate of the DLC Coating

et al. 2022

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“…Variation of the thickness of metallic nanolayers using our method has particular advantages. The degree of crystallinity in metallic nanolayers (in this case, Cr) is lower and the cluster sizes are smaller than those of DLC/metallic-based nanolayered coatings prepared by other methods (27,28). For clarity, the specimens were denoted as Cr150, Cr120, Cr80, Cr40, and Cr20 based on their respective Cr deposition powers.…”

Section: Introductionmentioning

confidence: 99%

Formation of discrete periodic nanolayered coatings through tailoring of nanointerfaces—Toward zero macroscale wear

et al. 2021

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“…The studies have shown that some coatings (Ti, Cr, TiO 2 , V 2 O 5 etc.) chemically bonded with diamonds, which increased the wettability of the binder to the diamonds and improved the holding force of the binder on the diamonds [8, [14][15][16]. Some researchers have carried out metal catalytic hydrogenation corrosion and oxygen plasma corrosion studies on diamond surfaces, resulting in micro patterns (pits and bulges) on the diamond surfaces, which effectively increased the holding force of the binder on the diamonds [17,18].…”

Section: Introductionmentioning

confidence: 99%

Research on the bonding properties of vitrified bonds with porous diamonds and the grinding performance of porous diamond abrasive tools

Fang

Long

et al. 2022

Diamond and Related Materials

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Ordinary diamond presents the disadvantages of poor self-sharpening and concentrated grinding stress when it is used as an abrasive. Moreover, this kind of diamond cannot be well wetted by the vitri ed bond, resulting in a lower holding force of the binder to the abrasives (i.e., the diamond is easy to detach from the binder matrix during grinding). These comprehensive factors not only reduce the surface quality of the processed workpiece, but also hinder the processing e ciency. In order to solve these problems, a new type of porous diamond with high self-sharpening properties was prepared using a thermochemical corrosion method in this study. Our results showed a great improvement in pore volume and speci c surface area of the porous diamond compared with ordinary diamond abrasive particles, and the holding force and wettability of vitri ed bond to the porous diamond abrasive particles were also improved.Compared with ordinary diamond abrasive tools, porous diamond abrasive tools showed a 29.6% increase in grinding e ciency, a 15.5% decreased in grinding ratio, a 27.5% reduction in workpiece surface roughness, and the scratches on the silicon wafer surface were reduced and re ned.

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Enhancement of tribological properties of DLC by incorporation of amorphous titanium using magnetron sputtering process

Cited by 23 publications

References 49 publications

Effect of sp3–sp2 Transformation on the Wear Rate of the DLC Coating

Effect of sp3–sp2 Transformation on the Wear Rate of the DLC Coating

Formation of discrete periodic nanolayered coatings through tailoring of nanointerfaces—Toward zero macroscale wear

Research on the bonding properties of vitrified bonds with porous diamonds and the grinding performance of porous diamond abrasive tools

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