Tribological Properties of a Mesh-Like Nanostructured Diamond-Like Carbon (DLC) Lubricated with a Fully Formulated Oil at DLC/Steel Contacts under Boundary Lubrication
| العنوان: | Tribological Properties of a Mesh-Like Nanostructured Diamond-Like Carbon (DLC) Lubricated with a Fully Formulated Oil at DLC/Steel Contacts under Boundary Lubrication |
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| المؤلفون: | Shinya Sasaki, Daisuke Iba, Hideki Moriguchi, Seiya Watanabe, Ichiro Moriwaki, Hikaru Okubo, Yuuki Tokuta |
| المصدر: | Coatings, Vol 11, Iss 746, p 746 (2021) Coatings Volume 11 Issue 7 |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Nanostructure, Materials science, Diamond-like carbon, in situ observation, chemistry.chemical_element, 02 engineering and technology, a-C, diamond-like carbon, 0203 mechanical engineering, Materials Chemistry, Composite material, a-C:H, Surfaces and Interfaces, Tribology, 021001 nanoscience & nanotechnology, Engineering (General). Civil engineering (General), Surfaces, Coatings and Films, 020303 mechanical engineering & transports, chemistry, Amorphous carbon, Lubrication, boundary lubrication, TA1-2040, 0210 nano-technology, Boundary lubrication, Carbon, Layer (electronics) |
| الوصف: | The present paper describes the tribological properties of a mesh-like nanostructure of diamond-like carbon (DLC) in a formulated engine oil at DLC/steel contacts. This novel nanostructured DLC was characterized as a non-hydrogenated amorphous carbon (a-C) with a nano-mesh structure layer at the outermost surface, herein named NM-a-C. From the results of our friction tests, we observed that the NM-a-C/steel tribopair exhibited lower friction and higher wear-resistance than the a-C:H/steel tribopair, though the mechanical properties were nearly identical. The analytical result indicated that the tribofilm formation process and the chemical composition of the tribofilm varied depending on the types of the DLC. In particular, thicker MoS2-rich tribofilms formed on the NM-a-C surface. Hence, the NM-a-C structure promoted the formation of MoS2 under the lubrication with the fully formulated oil, leading to lower friction and high wear-resistance at the DLC/steel contact under boundary lubrication conditions. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2079-6412 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90c41037a0ef1d41bbb2701056e713fd https://www.mdpi.com/2079-6412/11/7/746 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....90c41037a0ef1d41bbb2701056e713fd |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20796412 |
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