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Unprecedented tribological performance of binary Sb/Ag-doped MoS2 coatings fabricated with chemical vapor deposition

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Abstract

This study aims at assessing the tribological performance of novel self-lubricating chemical vapor-deposited MoS2 coatings binary-doped with antimony (Sb) and silver (Ag). The Sb/Ag-doped MoS2 composite coatings showed an excellent solid lubrication performance with low and constant coefficients of friction of about 0.1 for a sliding time of 6 h. Estimations of the underlying wear rates revealed a reduction of the resulting wear rate by two orders of magnitude for the binary-doped Sb/Ag–MoS2 composite coatings (2.43 ± 0.27 × 10–7 mm3/Nm versus 2.70 ± 0.44 × 10–5 mm3/Nm for un-doped MoS2 coating), which reflects an outstanding wear resistance.

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Acknowledgements

The authors are grateful for the Project of the Chinese Academy of Sciences (XDC07030100, XDA22020602, ZDKYYQ20200001, ZDRW-CN-2019-3 and 2020VEC0006), CAS Youth Innovation Promotion Association (2020301), Science and Technology Major Project of Ningbo (2018B10046), Foundation of State Key Laboratory of Solid lubrication (LSL-1912), National Key Laboratory of Science and Technology on Advanced Composites in Special Environments (6142905192806), and the Ningbo 3315 Innovation (2019A-18-C). A. Rosenkranz are grateful for the financial support given by ANID-CHILE in the project Fondecyt 11180121 and U-Inicia UI013/2018.

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Correspondence to X. D. Luo, A. Rosenkranz or B. Wang.

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Yi, J., Yang, M.M., Luo, X.D. et al. Unprecedented tribological performance of binary Sb/Ag-doped MoS2 coatings fabricated with chemical vapor deposition. Appl Nanosci 11, 841–847 (2021). https://doi.org/10.1007/s13204-020-01638-x

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  • DOI: https://doi.org/10.1007/s13204-020-01638-x

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