Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings
Transition metal dichalcogenide coatings have emerged as potential candidates for terrestrial and aerospace mobility applications. Among these, the alloyed MoSe<sub>2</sub> coatings have displayed promising results while sliding in diverse environments. N-alloyed Mose<sub>2</sub...
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MDPI AG
2025-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/6/414 |
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| author | Talha Bin Yaqub Irfan Nadeem Muhammad Aneeq Haq Muhammad Yasir Albano Cavaleiro Mitjan Kalin |
| author_facet | Talha Bin Yaqub Irfan Nadeem Muhammad Aneeq Haq Muhammad Yasir Albano Cavaleiro Mitjan Kalin |
| author_sort | Talha Bin Yaqub |
| collection | DOAJ |
| description | Transition metal dichalcogenide coatings have emerged as potential candidates for terrestrial and aerospace mobility applications. Among these, the alloyed MoSe<sub>2</sub> coatings have displayed promising results while sliding in diverse environments. N-alloyed Mose<sub>2</sub> coatings provide the additional benefit of overcoming the impact of PVD compositional variations on dry sliding, making them promising solid lubricants for mobility-sector applications. However, the impact of long-term storage has never been investigated for this rarely studied solid-lubricant system. This study investigates the tribological performance of direct current magnetron sputtered MoSeN coatings after 40 months of storage in an ambient atmosphere. Sliding tests were conducted under conditions consistent with pre-storage conditions. The results showed that coatings with 0 at. %, 22 at. %, 33 at. %, and 35 at. % N-alloying exhibited COF values nearly identical to the pre-storage results, with only a negligible increase in ~0.01. Similarly, all coatings displayed specific wear rates in the range of 10<sup>−7</sup>, aligning with earlier findings. The obtained results show that the sliding performance of MoSeN coatings does not deteriorate over time, highlighting their suitability for critical aerospace applications, where components and assembled parts may be stored for years before launching into space or in actual applications. |
| format | Article |
| id | doaj-art-24252c9eb0e84e46a54960f59263b6cc |
| institution | DOAJ |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-24252c9eb0e84e46a54960f59263b6cc2025-08-20T02:42:22ZengMDPI AGNanomaterials2079-49912025-03-0115641410.3390/nano15060414Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> CoatingsTalha Bin Yaqub0Irfan Nadeem1Muhammad Aneeq Haq2Muhammad Yasir3Albano Cavaleiro4Mitjan Kalin5Laboratory for Tribology and Interface Nanotechnology (TINT), Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, SloveniaLaboratory for Tribology and Interface Nanotechnology (TINT), Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, SloveniaSchool of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad 46000, PakistanDepartment of Fire Safety Engineering and Management ICEM, Muscat 2511, OmanDepartment of Mechanical Engineering, CEMMPRE, ARISE, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, PortugalLaboratory for Tribology and Interface Nanotechnology (TINT), Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, SloveniaTransition metal dichalcogenide coatings have emerged as potential candidates for terrestrial and aerospace mobility applications. Among these, the alloyed MoSe<sub>2</sub> coatings have displayed promising results while sliding in diverse environments. N-alloyed Mose<sub>2</sub> coatings provide the additional benefit of overcoming the impact of PVD compositional variations on dry sliding, making them promising solid lubricants for mobility-sector applications. However, the impact of long-term storage has never been investigated for this rarely studied solid-lubricant system. This study investigates the tribological performance of direct current magnetron sputtered MoSeN coatings after 40 months of storage in an ambient atmosphere. Sliding tests were conducted under conditions consistent with pre-storage conditions. The results showed that coatings with 0 at. %, 22 at. %, 33 at. %, and 35 at. % N-alloying exhibited COF values nearly identical to the pre-storage results, with only a negligible increase in ~0.01. Similarly, all coatings displayed specific wear rates in the range of 10<sup>−7</sup>, aligning with earlier findings. The obtained results show that the sliding performance of MoSeN coatings does not deteriorate over time, highlighting their suitability for critical aerospace applications, where components and assembled parts may be stored for years before launching into space or in actual applications.https://www.mdpi.com/2079-4991/15/6/414MoSeN coatingsstorage life cyclesolid lubricantfriction and wearaerospace industry |
| spellingShingle | Talha Bin Yaqub Irfan Nadeem Muhammad Aneeq Haq Muhammad Yasir Albano Cavaleiro Mitjan Kalin Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings Nanomaterials MoSeN coatings storage life cycle solid lubricant friction and wear aerospace industry |
| title | Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings |
| title_full | Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings |
| title_fullStr | Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings |
| title_full_unstemmed | Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings |
| title_short | Investigating the Effects of Long-Term Ambient Air Storage on the Sliding Properties of N-Alloyed MoSe<sub>2</sub> Coatings |
| title_sort | investigating the effects of long term ambient air storage on the sliding properties of n alloyed mose sub 2 sub coatings |
| topic | MoSeN coatings storage life cycle solid lubricant friction and wear aerospace industry |
| url | https://www.mdpi.com/2079-4991/15/6/414 |
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