Cargando…
Macroscopic Superlow Friction of Steel and Diamond-Like Carbon Lubricated with a Formanisotropic 1,3-Diketone
[Image: see text] Energy dissipation due to friction and wear is reducing the energy efficiency and reliability of mechanical systems. Thus, great efforts are being made to minimize friction for technical applications. In our present work, we investigate the tribological behavior of stainless steel...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2017
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645003/ https://www.ncbi.nlm.nih.gov/pubmed/31457372 http://dx.doi.org/10.1021/acsomega.7b01561 |
_version_ | 1783437367361667072 |
---|---|
author | Amann, Tobias Kailer, Andreas Oberle, Natalie Li, Ke Walter, Michael List, Mathias Rühe, Jürgen |
author_facet | Amann, Tobias Kailer, Andreas Oberle, Natalie Li, Ke Walter, Michael List, Mathias Rühe, Jürgen |
author_sort | Amann, Tobias |
collection | PubMed |
description | [Image: see text] Energy dissipation due to friction and wear is reducing the energy efficiency and reliability of mechanical systems. Thus, great efforts are being made to minimize friction for technical applications. In our present work, we investigate the tribological behavior of stainless steel 100Cr6 with a-C:H and a-C:H:Si coating lubricated with a surface-active formanisotropic 1,3-diketone. The results show that superlow friction can be achieved on the macroscale using a steel 100Cr6 self pairing (COF ∼ 0.005) and with 100Cr6 in combination with a-C:H coating (COF ∼ 0.008). Furthermore, the replacement of steel with a-C:H coating leads to a considerable decrease of wear. The reduced COF arises from the chemical interaction of the lubricant with the surface and nascent iron ions. It was found that interfacial parameters correlate with tribological results. In addition, the alignment of the formanisotropic molecules in the tribological contact at thin-film lubrication leads to an anisotropic viscosity with a minimum shear resistance in sliding direction. Atomistic simulation of tribochemical interactions was conducted to derive a friction model based on the thin-film lubrication theory. This investigation indicates the potential to substantially reduce friction and wear using this fluid in real technical applications. |
format | Online Article Text |
id | pubmed-6645003 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66450032019-08-27 Macroscopic Superlow Friction of Steel and Diamond-Like Carbon Lubricated with a Formanisotropic 1,3-Diketone Amann, Tobias Kailer, Andreas Oberle, Natalie Li, Ke Walter, Michael List, Mathias Rühe, Jürgen ACS Omega [Image: see text] Energy dissipation due to friction and wear is reducing the energy efficiency and reliability of mechanical systems. Thus, great efforts are being made to minimize friction for technical applications. In our present work, we investigate the tribological behavior of stainless steel 100Cr6 with a-C:H and a-C:H:Si coating lubricated with a surface-active formanisotropic 1,3-diketone. The results show that superlow friction can be achieved on the macroscale using a steel 100Cr6 self pairing (COF ∼ 0.005) and with 100Cr6 in combination with a-C:H coating (COF ∼ 0.008). Furthermore, the replacement of steel with a-C:H coating leads to a considerable decrease of wear. The reduced COF arises from the chemical interaction of the lubricant with the surface and nascent iron ions. It was found that interfacial parameters correlate with tribological results. In addition, the alignment of the formanisotropic molecules in the tribological contact at thin-film lubrication leads to an anisotropic viscosity with a minimum shear resistance in sliding direction. Atomistic simulation of tribochemical interactions was conducted to derive a friction model based on the thin-film lubrication theory. This investigation indicates the potential to substantially reduce friction and wear using this fluid in real technical applications. American Chemical Society 2017-11-28 /pmc/articles/PMC6645003/ /pubmed/31457372 http://dx.doi.org/10.1021/acsomega.7b01561 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Amann, Tobias Kailer, Andreas Oberle, Natalie Li, Ke Walter, Michael List, Mathias Rühe, Jürgen Macroscopic Superlow Friction of Steel and Diamond-Like Carbon Lubricated with a Formanisotropic 1,3-Diketone |
title | Macroscopic Superlow Friction of Steel and Diamond-Like
Carbon Lubricated with a Formanisotropic 1,3-Diketone |
title_full | Macroscopic Superlow Friction of Steel and Diamond-Like
Carbon Lubricated with a Formanisotropic 1,3-Diketone |
title_fullStr | Macroscopic Superlow Friction of Steel and Diamond-Like
Carbon Lubricated with a Formanisotropic 1,3-Diketone |
title_full_unstemmed | Macroscopic Superlow Friction of Steel and Diamond-Like
Carbon Lubricated with a Formanisotropic 1,3-Diketone |
title_short | Macroscopic Superlow Friction of Steel and Diamond-Like
Carbon Lubricated with a Formanisotropic 1,3-Diketone |
title_sort | macroscopic superlow friction of steel and diamond-like
carbon lubricated with a formanisotropic 1,3-diketone |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645003/ https://www.ncbi.nlm.nih.gov/pubmed/31457372 http://dx.doi.org/10.1021/acsomega.7b01561 |
work_keys_str_mv | AT amanntobias macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone AT kailerandreas macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone AT oberlenatalie macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone AT like macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone AT waltermichael macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone AT listmathias macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone AT ruhejurgen macroscopicsuperlowfrictionofsteelanddiamondlikecarbonlubricatedwithaformanisotropic13diketone |