With the rapid development of aerospace, high-precision CNC machine tools (precision carbide parts processing),
advanced nuclear energy and other fields, the mechanical parts of the
mechanical service conditions are increasingly changing, complex, harsh,
surface lubrication and protective film (TMD) and diamond-like carbon
(DLC), and so on. It is a serious challenge to lubricate thin film
materials such as traditional transition metal disulfide film (TMD) and
diamond-like carbon film (DLC).
Institute of Chemical Physics, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China In recent years, it has been committed to the study of TMD / DLC binary composites and their multicomponent doping films. Recently, the Mo-S-N binary composite film and the Mo-S-C-N composite film have been successfully prepared for the first time, and their properties have been studied deeply. The results show that the C / N co - doping of the non - metallic element makes the surface of the sputtered film more dense and flat, and the columnar structure is obviously weakened. The parametric optimized C / N co-doping can effectively reduce the sensitivity of N-doped MoS2 thin films to the humid atmospheric environment, while maintaining the mechanical strength and toughness of the films while maintaining the low friction and wear of the films in vacuum and humid atmosphere Which is a new way to realize the integration of low friction, antiradiation and adaptability of the composite film system in the space and fusion irradiation environment.
It is found that the self-adaptability of the TMD / DLC composite thin film system is affected by the evolution of the non-lubricating phase selectively transferred out of the contact surface. In the frictional chemical reaction, the degree of directional ordering of the lubricating phase is determined The minimum coefficient of friction of the film, the degree of selective transfer of non-lubricating phase determines the minimum wear rate of the film. At the same time, there is also a significant correlation between the microstructure of the composite composite thin film and the selective transfer behavior. The (002) plane-oriented MoS2 enrichment layer is very beneficial to the rapid formation of the two-dimensional layered structure in vacuum and dry atmosphere The highly directional and ordered TMD transfer film (Fig. 1) provides a significant reduction in the running time of the film, which provides technical support for optimizing the synergistic effect of different tribological reactions between the lubricating phase and the non-lubricating phase. Related research results published in ACS Appl. Mater. Interfaces.7 (2015) 12943-12950, J. Phys. D: Appl. Phys. 48 (2015) 175304, Surf. Coat. Technol. 266 (2016) 185-191, Appl. Surf. Sci. 364 (2016) 249-256, Sci. Rep.6 (2016) 25378, Fusion Eng. Des. 104 (2016) 40-45, Tribology. 36 (2016) 1-6, Appl Sci. 0.46 (2017) 30-38 and Phys. Chem. Chem. Phys. 19 (2017) 8161-8173 and other journals, and by Phys. Chem. Chem. Phys. Selected 2017 19 period back cover.
The above work to solve the long life, high load joint bearing surface coating process and complex and volatile environment in the process of encountering low bearing capacity, environmental sensitivity caused by film failure and other issues in China's domestic EAST Tokamak device remote operation arm joint Bearings and micro-satellite solar panels secondary deployment of the lubrication and protection of the field of successful application.
Institute of Chemical Physics, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China In recent years, it has been committed to the study of TMD / DLC binary composites and their multicomponent doping films. Recently, the Mo-S-N binary composite film and the Mo-S-C-N composite film have been successfully prepared for the first time, and their properties have been studied deeply. The results show that the C / N co - doping of the non - metallic element makes the surface of the sputtered film more dense and flat, and the columnar structure is obviously weakened. The parametric optimized C / N co-doping can effectively reduce the sensitivity of N-doped MoS2 thin films to the humid atmospheric environment, while maintaining the mechanical strength and toughness of the films while maintaining the low friction and wear of the films in vacuum and humid atmosphere Which is a new way to realize the integration of low friction, antiradiation and adaptability of the composite film system in the space and fusion irradiation environment.
It is found that the self-adaptability of the TMD / DLC composite thin film system is affected by the evolution of the non-lubricating phase selectively transferred out of the contact surface. In the frictional chemical reaction, the degree of directional ordering of the lubricating phase is determined The minimum coefficient of friction of the film, the degree of selective transfer of non-lubricating phase determines the minimum wear rate of the film. At the same time, there is also a significant correlation between the microstructure of the composite composite thin film and the selective transfer behavior. The (002) plane-oriented MoS2 enrichment layer is very beneficial to the rapid formation of the two-dimensional layered structure in vacuum and dry atmosphere The highly directional and ordered TMD transfer film (Fig. 1) provides a significant reduction in the running time of the film, which provides technical support for optimizing the synergistic effect of different tribological reactions between the lubricating phase and the non-lubricating phase. Related research results published in ACS Appl. Mater. Interfaces.7 (2015) 12943-12950, J. Phys. D: Appl. Phys. 48 (2015) 175304, Surf. Coat. Technol. 266 (2016) 185-191, Appl. Surf. Sci. 364 (2016) 249-256, Sci. Rep.6 (2016) 25378, Fusion Eng. Des. 104 (2016) 40-45, Tribology. 36 (2016) 1-6, Appl Sci. 0.46 (2017) 30-38 and Phys. Chem. Chem. Phys. 19 (2017) 8161-8173 and other journals, and by Phys. Chem. Chem. Phys. Selected 2017 19 period back cover.
The above work to solve the long life, high load joint bearing surface coating process and complex and volatile environment in the process of encountering low bearing capacity, environmental sensitivity caused by film failure and other issues in China's domestic EAST Tokamak device remote operation arm joint Bearings and micro-satellite solar panels secondary deployment of the lubrication and protection of the field of successful application.
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