How Hydrogen and Oxygen Vapor Affect the Tribochemistry of Silicon- and Oxygen-Containing Hydrogenated Amorphous Carbon under Low-Friction Conditions: A Study Combining X-ray Absorption Spectromicroscopy and Data Science Methods

Autor: Komlavi D. Koshigan, Mark Hilary Van Benthem, Robert W. Carpick, J. B. McClimon, James Hilbert, Filippo Mangolini, James Anthony Ohlhausen, Julien Fontaine

Publikováno v: ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces, Washington, D.C. : American Chemical Society, 2021, 13 (10), pp.12610-12621. ⟨10.1021/acsami.1c00090⟩

The incorporation of silicon and oxygen into hydrogenated amorphous carbon (a-C:H) is an effective approach to decrease the dependence of the tribological properties of a-C:H on the environment. Here, we evaluate the effect of hydrogen and oxygen par

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6da4a1e387898bdf5da59d261603529c
https://pubmed.ncbi.nlm.nih.gov/33656848

Si doping enhances the thermal stability of diamond-like carbon through reductions in carbon-carbon bond length disorder

Autor: Filippo Mangolini, Robert W. Carpick, Jennifer R. Lukes, J. B. McClimon, James Hilbert

Publikováno v: Carbon. 131:72-78

Low thermal stability is a major limitation of diamond-like carbon (DLC) films, especially amorphous hydrogenated carbon (a-C:H) films, inhibiting their use in several applications. Adding silicon and oxygen to a-C:H increases thermal stability, but

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81df694b4b8af51589385e0b93519a59
https://doi.org/10.1016/j.carbon.2018.01.081

Investigation of the Mechanics, Composition, and Functional Behavior of Thick Tribofilms Formed from Silicon- and Oxygen-Containing Hydrogenated Amorphous Carbon

Autor: Mitra L. Taheri, Robert W. Carpick, A.C. Moore, James Hilbert, Andrew C. Lang, J. B. McClimon, Zachary B Milne, Julien Fontaine, David L. Burris, Nikolay T. Garabedian, Jennifer R. Lukes, Filippo Mangolini

Publikováno v: Tribology Letters
Tribology Letters, Springer Verlag, 2019, 67 (2), ⟨10.1007/s11249-019-1155-x⟩

A custom-grown silicon and oxygen-containing hydrogenated amorphous carbon (a-C:H:Si:O) film is subjected to ball-on-flat tribometry under controlled sliding environments (ambient, dry air, and dry N2) at room temperature using a 52100 steel ball. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3313bb4fb3b7089efc808c1540ea70ce
https://hal.archives-ouvertes.fr/hal-02383353

Electronic Structure and Band Gap of Fullerenes on Tungsten Surfaces: Transition from a Semiconductor to a Metal Triggered by Annealing

Autor: Ehsan Monazami, J. B. McClimon, Petra Reinke, James M. Rondinelli

Publikováno v: ACS Applied Materials & Interfaces. 8:34854-34862

The understanding and control of molecule–metal interfaces is critical to the performance of molecular electronics and photovoltaics devices. We present a study of the interface between C60 and W, which is a carbide-forming transition metal. The co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fac024b13c958e6dd281801f6059009
https://doi.org/10.1021/acsami.6b10813

Understanding the hydrogen and oxygen gas pressure dependence of the tribological properties of silicon oxide-doped hydrogenated amorphous carbon coatings

Autor: Béatrice Vacher, K. D. Koshigan, Sandrine Bec, Filippo Mangolini, Robert W. Carpick, Julien Fontaine, J. B. McClimon

Silicon oxide-doped hydrogenated amorphous carbons (a–C:H:Si:O) are amorphous thin films used as solid lubricants in a range of commercial applications, thanks to its increased stability in extreme environments, relative to amorphous hydrogenated c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a2687eab977eb97b475ce9726b5063