Structure, composition, and mechanical characterization of dc sputtered TiN-MoS2 nanocomposite thin films

Strapasson, Gilmara; Badin, P.C.; Soares, Gabriel Vieira; Machado, Giovanna; Figueroa, Carlos A.; Hübler, Roberto; Gasparin, Alexandre Luís; Baumvol, Israel Jacob Rabin; Aguzzoli, César; Tentardini, E.K.

doi:10.1016/j.surfcoat.2011.01.044

Cited by 27 publications

(9 citation statements)

References 38 publications

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“…Gilmore et al deviate from these concepts by embedding sub-stoichiometric MoS x into a TiN coating matrix, enabling the possible application in highly loaded tribological contacts like cutting tools for dry machining [16]. Based on the structural analysis of the TiN-MoS conclusion that MoS 2 clusters are embedded in the TiN coating matrix [17]. Moreover, the study of Kim et al showed that by increasing the MoS 2 share in a CrN coating matrix leads to a reduction of the crystalline structure [18].…”

Section: Mos 2 Coating Concepts For Fluid-free Running Applicationsmentioning

confidence: 99%

Understanding the Tribological Behavior of Graded (Cr,Al)N + Mo:S in Fluid-Free Friction Regime

2021

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Components running in fluid-free friction regimes are exposed to harsh conditions leading to increased friction and wear. Thereby, the use of the solid lubricant molybdenum disulfide (MoS2) via lacquers, powders or physical vapor deposition (PVD) coatings enables a friction and wear reduction. However, the tribological performance is limited to low mechanical loads. A promising coating concept already proven for high mechanical loads is the incorporation of the triboactive elements Mo and S in wear resistant hard nitride (Cr,Al)N matrix. In this study the supply mechanism and transfer of the tribofilm build out of the toplayer of the triboactive coating graded (Cr,Al)N + Mo:S under high mechanical loads at humid air were analyzed. Here, the chemical composition of the tribofilm was determined by a combination of Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) and correlated with tribological analysis. The results prove a friction and wear reduction independent of Hertzian pressure in the area of 400 MPa ≤ pH ≤ 1300 MPa due to the formation of a MoS2 and molybdenum oxide MoxOy containing tribofilm, whereby the share of MoxOy dominates compared to MoS2. Based on the results the understanding of the effect of the MoS2 + MoxOy containing tribofilm on the tribological behavior is increased.

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Section: Mos 2 Coating Concepts For Fluid-free Running Applicationsmentioning

confidence: 99%

Understanding the Tribological Behavior of Graded (Cr,Al)N + Mo:S in Fluid-Free Friction Regime

2021

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“…Some studies prove that metal ion implantations [2,3] could form new phases and lubricious metal oxides on TiN coatings to obtain better tribological properties. Other studies [4,5] show that TiN coatings could display low friction coefficients and wear rates by incorporating solid lubricants. It is very interesting and meaningful to explore the possibility of improving the tribological performances of TiN coatings through combing the above two ways, metal ion implantations and incorporation of solid lubricants.…”

Section: Introductionmentioning

confidence: 99%

Surface properties of W-implanted TiN coatings post-treated by low temperature ion sulfurization

Tian

Yue

Wang

et al. 2015

Applied Surface Science

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“…At present, modifying the microstructure by doping the TMD film with other elements or constructing multilayer structures is a conventional way to improve the tribological property of the TMD-based lubricating films It has been reported that the incorporation of metals or non-metallic elements and components into the TMD films helps in constricting a much denser structure and reducing the wear rate of the films [12][13][14][15][16][17][18]. The multilayer architecture, controlled by alternating the nanometer-thick layer of MoS 2 or WS 2 and metal or compounds layer, has also been investigated to improve the tribological properties by the adjusting of the film microstructure and stress distribution [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Low Deposition Temperature-Induced Changes of the Microstructure and Tribological Property of WS2 Film

Dong²,

Wang

et al. 2019

Coatings

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Pure WS2 films were prepared by the radio frequency sputtering of a WS2 target with the initial substrate temperature controlled to −40, −25, 0 °C and room temperature by cooling the holder with liquid nitrogen, respectively. The influence of the substrate temperature on the microstructures and the tribological properties of the prepared films have been evaluated and the wear mechanism of the films was explained. It revealed that with decreasing the substrate temperature, the prepared WS2 film changed from the loose and coarse columnar plate structure for film deposited at room temperature to a much more compact morphology for film deposited at −40 °C. The WS2 film deposited at low temperature of −40 or −25 °C exhibited a long wear life higher than 5.0 × 105 sliding cycles, while this was about 1.5 × 105 cycles for the WS2 deposited at room temperature. The improved tribological properties for the low temperature-deposited film were mainly attributed to the much lower wear rate resulted from the compact structure as well as the sustained and steadily formed transform layer on the counterpart ball.

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Structure, composition, and mechanical characterization of dc sputtered TiN-MoS2 nanocomposite thin films

Cited by 27 publications

References 38 publications

Understanding the Tribological Behavior of Graded (Cr,Al)N + Mo:S in Fluid-Free Friction Regime

Understanding the Tribological Behavior of Graded (Cr,Al)N + Mo:S in Fluid-Free Friction Regime

Surface properties of W-implanted TiN coatings post-treated by low temperature ion sulfurization

Low Deposition Temperature-Induced Changes of the Microstructure and Tribological Property of WS2 Film

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