Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation
The tribological performance of PFPE oil and the Ti:WS<sub>2</sub>/PFPE composite lubricating system with different oil amounts was investigated under a proton radiation (PR) irradiation environment. After PR irradiation, PFPE molecules occurred during cross-linking and a polymerization...
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MDPI AG
2024-11-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/12/12/403 |
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| author | Jian Liu Zhen Yan Junying Hao Weimin Liu |
| author_facet | Jian Liu Zhen Yan Junying Hao Weimin Liu |
| author_sort | Jian Liu |
| collection | DOAJ |
| description | The tribological performance of PFPE oil and the Ti:WS<sub>2</sub>/PFPE composite lubricating system with different oil amounts was investigated under a proton radiation (PR) irradiation environment. After PR irradiation, PFPE molecules occurred during cross-linking and a polymerization reaction and formed a volatile small molecular compound, which deteriorates the tribological performance of the Ti:WS<sub>2</sub>/PFPE system. The tribological properties of the Ti:WS<sub>2</sub>/PFPE system rely strongly on oil amount. For an unirradiated Ti:WS<sub>2</sub>/PFPE system, the amorphous layer of transfer film near the sliding contact area was converted into a well-defined crystalline WS<sub>2</sub> layer with a (002) plane induced by the friction process. After PR irradiation, the transfer film became thicker and showed a wholly amorphous structure due to the difficulty in preventing the entrance of O and showed no reorientation with induced friction. |
| format | Article |
| id | doaj-art-ea74de20e4014dc689b975cfbc7c7fb6 |
| institution | DOAJ |
| issn | 2075-4442 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-ea74de20e4014dc689b975cfbc7c7fb62025-08-20T02:50:55ZengMDPI AGLubricants2075-44422024-11-01121240310.3390/lubricants12120403Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton RadiationJian Liu0Zhen Yan1Junying Hao2Weimin Liu3State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaThe tribological performance of PFPE oil and the Ti:WS<sub>2</sub>/PFPE composite lubricating system with different oil amounts was investigated under a proton radiation (PR) irradiation environment. After PR irradiation, PFPE molecules occurred during cross-linking and a polymerization reaction and formed a volatile small molecular compound, which deteriorates the tribological performance of the Ti:WS<sub>2</sub>/PFPE system. The tribological properties of the Ti:WS<sub>2</sub>/PFPE system rely strongly on oil amount. For an unirradiated Ti:WS<sub>2</sub>/PFPE system, the amorphous layer of transfer film near the sliding contact area was converted into a well-defined crystalline WS<sub>2</sub> layer with a (002) plane induced by the friction process. After PR irradiation, the transfer film became thicker and showed a wholly amorphous structure due to the difficulty in preventing the entrance of O and showed no reorientation with induced friction.https://www.mdpi.com/2075-4442/12/12/403PR irradiationTi:WS<sub>2</sub>/PFPE composite systemPFPE oillubricating mechanism |
| spellingShingle | Jian Liu Zhen Yan Junying Hao Weimin Liu Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation Lubricants PR irradiation Ti:WS<sub>2</sub>/PFPE composite system PFPE oil lubricating mechanism |
| title | Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation |
| title_full | Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation |
| title_fullStr | Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation |
| title_full_unstemmed | Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation |
| title_short | Investigation of Tribological Performance of Ti:WS<sub>2</sub>/PFPE Composite Lubricating System Under Proton Radiation |
| title_sort | investigation of tribological performance of ti ws sub 2 sub pfpe composite lubricating system under proton radiation |
| topic | PR irradiation Ti:WS<sub>2</sub>/PFPE composite system PFPE oil lubricating mechanism |
| url | https://www.mdpi.com/2075-4442/12/12/403 |
| work_keys_str_mv | AT jianliu investigationoftribologicalperformanceoftiwssub2subpfpecompositelubricatingsystemunderprotonradiation AT zhenyan investigationoftribologicalperformanceoftiwssub2subpfpecompositelubricatingsystemunderprotonradiation AT junyinghao investigationoftribologicalperformanceoftiwssub2subpfpecompositelubricatingsystemunderprotonradiation AT weiminliu investigationoftribologicalperformanceoftiwssub2subpfpecompositelubricatingsystemunderprotonradiation |