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Binder assisted graphene derivatives as lubricants in copper: Improved tribological performance for industrial application

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Titel: Binder assisted graphene derivatives as lubricants in copper: Improved tribological performance for industrial application
Autoren: Huang, Changjie, 1998, Zhao, Su, Chen, Ruiqi, 1997, Johansson, Erik, Aqeel, Muhammad, Klement, Uta, 1962, Andersson, Anna M., Taher, Mamoun, Palermo, Vincenzo, 1972, Sun, Jinhua, 1987
Quelle: Grafen-polymer tryckdetektorer GAIA - Grafen Applikation i Industriell Anläggning iScience. 27(4)
Schlagwörter: Materials chemistry, Materials application
Beschreibung: Originally derived from graphite, high-quality single-layer graphene is an excellent anti-wear and -friction additive in metal matrix. Here, the tribological performance of 3 different commercialized graphene derivatives (e.g., graphene oxide [GO], reduced graphene oxide [RGO], and graphene nanoplatelet [GNP]) as additives in a Cu matrix, were investigated from an industrial perspective. To increase the interaction of graphene derivatives with Cu particles, and addressing the aggregation problem of the graphene derivatives, different binders (polyvinyl alcohol [PVA] and cellulose nanocrystals [CNC]) were introduced into the system. Benefiting from such a strategy, a uniform distribution of the graphene derivatives in Cu matrix was achieved with graphene loading up to 5 wt %. After high-temperature sintering, the graphene is preserved and well distributed in the Cu matrix. It was found that the GNP-containing sample shows the most stable friction coefficient behavior. However, GO and RGO also improve the tribological performance of Cu under different circumstances.
Dateibeschreibung: electronic
Zugangs-URL: https://research.chalmers.se/publication/542188
https://research.chalmers.se/publication/542188/file/542188_Fulltext.pdf
Datenbank: SwePub
Beschreibung
Abstract:Originally derived from graphite, high-quality single-layer graphene is an excellent anti-wear and -friction additive in metal matrix. Here, the tribological performance of 3 different commercialized graphene derivatives (e.g., graphene oxide [GO], reduced graphene oxide [RGO], and graphene nanoplatelet [GNP]) as additives in a Cu matrix, were investigated from an industrial perspective. To increase the interaction of graphene derivatives with Cu particles, and addressing the aggregation problem of the graphene derivatives, different binders (polyvinyl alcohol [PVA] and cellulose nanocrystals [CNC]) were introduced into the system. Benefiting from such a strategy, a uniform distribution of the graphene derivatives in Cu matrix was achieved with graphene loading up to 5 wt %. After high-temperature sintering, the graphene is preserved and well distributed in the Cu matrix. It was found that the GNP-containing sample shows the most stable friction coefficient behavior. However, GO and RGO also improve the tribological performance of Cu under different circumstances.
ISSN:25890042
DOI:10.1016/j.isci.2024.109429