Amorphous self-lubricant MoS2-C sputtered coating with high hardness

Gu, Lei; Ke, Peiling; Zou, Yousheng; Li, Xiaowei; Wang, Aiying

doi:10.1016/j.apsusc.2015.01.057

Cited by 82 publications

(37 citation statements)

References 30 publications

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“…Although a-C involves the mixing of sp 2 -bonded atoms and sp 3 -bonded atoms [17,34], the D and G peaks are due to sp 2 bonds only. The D peaks which indicate the non-crystallinity of the C clusters were located at approximately 1370 -1396 cm −1 , which was due to the breathing modes (A 1g ) of sp 2 bonds [35][36][37]. The G peaks were located at approximately 1567-1595 cm −1 , which was due to the bond stretching motion (E 2g ) between sp 2 atoms in the chains and rings [38].…”

Section: Morphologymentioning

confidence: 99%

Development and characterization of magnetron sputtered self-lubricating Au-Ni/a-C nano-composite coating on CuCrZr alloy substrate

Chen

Qiao

Hillairet

et al. 2019

Applied Surface Science

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Compounding Au-Ni with carbon (C) lubricants is a feasible approach to improve its mechanical properties and wear performance. In this study, 3.5 µm-thick Au-Ni/C nanocomposite coatings with a low residual stress on CuCrZr substrates by magnetron sputtering were developed. Face-centered cubic and hexagonal close-packed stacking structures were both confirmed in the composite coatings based on transmission electron microscopy and X-ray diffraction analyses. Amorphous C (a-C) was confirmed to be the structure of C in the composite coatings, and its graphitization transition with an increase in the C content was validated by X-ray photoemission spectra and Raman spectroscopy. By compounding 0.88 wt.% a-C, the hardness of the Au-Ni/a-C coating reached 400 HV, which is twice higher than that of the Au-Ni coating. The electrical resistivity of the Au-Ni/a-C coating is relatively stable with an increase in the a-C content. As graphitization occurred on the wear track, the produced composite coatings showed a minimum wear rate of 2.2×10-6 mm 3 /N·m under atmospheric conditions, which is half that of the Au-Ni reference coating. Under vacuum, the wear performance of the produced Au-Ni/a-C composite coatings was similar to that of the Au-Ni reference coating.

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Section: Morphologymentioning

confidence: 99%

Development and characterization of magnetron sputtered self-lubricating Au-Ni/a-C nano-composite coating on CuCrZr alloy substrate

Chen

Qiao

Hillairet

et al. 2019

Applied Surface Science

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“…20,24,25 In addition, it is an effective way to improve the tribological property of MoS 2 coating by doping elements in MoS 2 coating. The doped elements [27][28][29][30][31] (including Au, Ag, Cu, Ti, Cr, W) and non-metallic elements [32][33][34][35] (including C, Si and N) could effectively enhance the mechanical and tribological properties of MoS 2 coating if properly conducted.…”

Section: Introductionmentioning

confidence: 99%

A study on the tribological property of MoS₂/Ti–MoS₂/Si multilayer nanocomposite coating deposited by magnetron sputtering

Kong

Wei

et al. 2020

RSC Adv.

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“…Sputtering-deposited MoS 2 films generally exhibit porous structure, low hardness, low-bearing capacity, and high wear rate [6][7][8][9][10]. Some methods have been developed to date to improve the density, hardness and tribological properties of sputtered TMDs films, either by doping with other elements [5][6][7][10][11][12][13][14][15] or fabricating multilayered structures such as MoS 2 /WS 2 [1,[16][17][18], MoS 2 /metal [19,20], MoS 2 /a-C:H [2] and MoS 2 /DLC multilayer films [21,22].…”

Section: Introductionmentioning

confidence: 99%

Structure, Mechanical and Tribological Properties of MoSN/MoS2 Multilayer Films

Yang

et al. 2019

Coatings

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MoSN/MoS2 multilayer films were deposited by a sputtering MoS2 target in alternate Ar and Ar/N2 mixed atmospheres with different nitrogen flow rates. The influence of nitrogen flow rates on the microstructure, mechanical and tribological properties of the prepared films were investigated. The multilayer film exhibited the preferred orientation of (002) plane for MoS2 sublayers and amorphous structure for MoSN sublayers. Introducing N2 into the source gas resulted in a much more compact structure for multilayer films due to the suppression of columnar growth of MoS2 film. With the increase of the nitrogen flow rate, the hardness of the multilayer film firstly increased from 2.3 to 10.5 GPa as the nitrogen flow rate increased from 4 to 10 sccm and then turned downwards to 6.5 GPa at 20 sccm. MoSN/MoS2 film deposited with an optimized microstructure exhibited low friction coefficients below 0.03 and a wear life higher than 1.8×105 revolutions in vacuum. Meanwhile, the optimized film showed an ultralow friction coefficient of 0.004~0.01 and wear rate of 4.7 × 10−7 mm3/N·m in an ultrahigh vacuum. Both the enhanced hardness by N-doping and sustainable formed MoS2 tribofilm contributed to the improved tribological property of MoSN/MoS2 multilayer film.

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Amorphous self-lubricant MoS2-C sputtered coating with high hardness

Cited by 82 publications

References 30 publications

Development and characterization of magnetron sputtered self-lubricating Au-Ni/a-C nano-composite coating on CuCrZr alloy substrate

Development and characterization of magnetron sputtered self-lubricating Au-Ni/a-C nano-composite coating on CuCrZr alloy substrate

A study on the tribological property of MoS₂/Ti–MoS₂/Si multilayer nanocomposite coating deposited by magnetron sputtering

Structure, Mechanical and Tribological Properties of MoSN/MoS2 Multilayer Films

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Amorphous self-lubricant MoS2-C sputtered coating with high hardness

Cited by 82 publications

References 30 publications

Development and characterization of magnetron sputtered self-lubricating Au-Ni/a-C nano-composite coating on CuCrZr alloy substrate

Development and characterization of magnetron sputtered self-lubricating Au-Ni/a-C nano-composite coating on CuCrZr alloy substrate

A study on the tribological property of MoS2/Ti–MoS2/Si multilayer nanocomposite coating deposited by magnetron sputtering

Structure, Mechanical and Tribological Properties of MoSN/MoS2 Multilayer Films

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A study on the tribological property of MoS₂/Ti–MoS₂/Si multilayer nanocomposite coating deposited by magnetron sputtering