A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film
Vacuum-sliding electrical contacts find extensive application in aerospace components, yet they face limitations related to inadequate lubrication performance. In this study, we analyzed the design of an emerging conductive lubricant material, NbSe<sub>2</sub>. A series of NbSe<sub>...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Lubricants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4442/12/2/44 |
| _version_ | 1827343255133487104 |
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| author | Yang Yang Guan Wang Xingchen Zhou Xingkang Su Long Gu |
| author_facet | Yang Yang Guan Wang Xingchen Zhou Xingkang Su Long Gu |
| author_sort | Yang Yang |
| collection | DOAJ |
| description | Vacuum-sliding electrical contacts find extensive application in aerospace components, yet they face limitations related to inadequate lubrication performance. In this study, we analyzed the design of an emerging conductive lubricant material, NbSe<sub>2</sub>. A series of NbSe<sub>2</sub>-Ti films with varying doped Ti contents were prepared through magnetron sputtering technology. We investigated the correlation between the sputtering current and composition, microstructure, mechanical properties, and current-carrying tribological properties of the films. The results indicate that under vacuum and current-carrying conditions, the NbSe<sub>2</sub>-Ti films demonstrate significant advantages over existing electrical-contact lubrication materials. Compared with electroplated gold films, the NbSe<sub>2</sub>-Ti films reduced the coefficient of friction from 0.25 to 0.015, thereby improving the wear life by more than six times. This result demonstrates that magnetron-sputtered NbSe<sub>2</sub> film can be used as a lubricant for space current-carrying sliding contacts. |
| first_indexed | 2024-03-07T22:23:35Z |
| format | Article |
| id | doaj.art-31f355c9f4d24480959759b43606bb99 |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-07T22:23:35Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-31f355c9f4d24480959759b43606bb992024-02-23T15:24:54ZengMDPI AGLubricants2075-44422024-02-011224410.3390/lubricants12020044A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti FilmYang Yang0Guan Wang1Xingchen Zhou2Xingkang Su3Long Gu4School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaSchool of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaSchool of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaSchool of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaSchool of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, ChinaVacuum-sliding electrical contacts find extensive application in aerospace components, yet they face limitations related to inadequate lubrication performance. In this study, we analyzed the design of an emerging conductive lubricant material, NbSe<sub>2</sub>. A series of NbSe<sub>2</sub>-Ti films with varying doped Ti contents were prepared through magnetron sputtering technology. We investigated the correlation between the sputtering current and composition, microstructure, mechanical properties, and current-carrying tribological properties of the films. The results indicate that under vacuum and current-carrying conditions, the NbSe<sub>2</sub>-Ti films demonstrate significant advantages over existing electrical-contact lubrication materials. Compared with electroplated gold films, the NbSe<sub>2</sub>-Ti films reduced the coefficient of friction from 0.25 to 0.015, thereby improving the wear life by more than six times. This result demonstrates that magnetron-sputtered NbSe<sub>2</sub> film can be used as a lubricant for space current-carrying sliding contacts.https://www.mdpi.com/2075-4442/12/2/44NbSe<sub>2</sub>-Ti filmcurrent-carrying tribological propertiesmagnetron sputtering |
| spellingShingle | Yang Yang Guan Wang Xingchen Zhou Xingkang Su Long Gu A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film Lubricants NbSe<sub>2</sub>-Ti film current-carrying tribological properties magnetron sputtering |
| title | A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film |
| title_full | A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film |
| title_fullStr | A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film |
| title_full_unstemmed | A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film |
| title_short | A Promising Conductive Lubricant for Space Sliding Electrical Contact: NbSe<sub>2</sub>-Ti Film |
| title_sort | promising conductive lubricant for space sliding electrical contact nbse sub 2 sub ti film |
| topic | NbSe<sub>2</sub>-Ti film current-carrying tribological properties magnetron sputtering |
| url | https://www.mdpi.com/2075-4442/12/2/44 |
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