Journal
RSC ADVANCES
Volume 8, Issue 39, Pages 22113-22121Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra02510j
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [51741104]
- Open Fund Project of National United Engineering Laboratory for Advanced Bearing Tribology [201706]
Ask authors/readers for more resources
Graphene-nickel (G-Ni) composites were in situ fabricated by a powder metallurgy method. The effects of graphene content on the tribological behavior of G-Ni composites were investigated. The tribochemistry and structural evolution of graphene were analyzed by X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy to understand the lubricating role of graphene in the G-Ni composite. The results show that graphene protects the nickel matrix from severe oxidation at the expense of its oxidation during sliding friction. Graphene on the friction interface transforms from a structure with less defects to a disordered amorphous structure. Polymeric segments are also generated by the tribochemical reactions of graphene. The formation of the tribofilms containing amorphous carbon and polymers is responsible for the self-lubricating behavior of the G-Ni composites.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available