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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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
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| Series: | Lubricants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4442/12/12/403 |
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| Summary: | 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. |
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| ISSN: | 2075-4442 |