Dynamic Fluid‐Like Graphene with Ultralow Frictional Molecular Bearing
Name
doi-10.1002 adma.201903195.pdf
Description
Accepted version
Size
2.39 MB
Format
Adobe PDF
Checksum (MD5)
c3e06c920253537791d2146218de8222
Author(s)
Jeon, Intak
Park, Gee Hoon
Wang, Pan
Li, Ju
Hunter, Ian
Swager, Timothy M
Date Issued
September 2019
Journal
Advanced Materials
Publisher
Wiley
Citation
Intak, Jeon et al. "Dynamic Fluid‐Like Graphene with Ultralow Frictional Molecular Bearing." Advanced Materials 31, 43 (September 2019): 1903195 © 2019 Wiley
Version
Author's final manuscript
Abstract
Fluid-like sliding graphenes but with solid-like out-of-plane compressive rigidity offer unique opportunities for achieving unusual physical and chemical properties for next-generation interfacial technologies. Of particular interest in the present study are graphenes with specific chemical functionalization that can predictably promote adhesion and wetting to substrate and ultralow frictional sliding structures. Lubricity between stainless steel (SS) and diamond-like carbon (DLC) is experimentally demonstrated with densely functionalized graphenes displaying dynamic intersheet bonds that mechanically transform into stable tribolayers. The macroscopic lubricity evolves through the formation of a thin film of an interconnected graphene matrix that provides a coefficient of friction (COF) of 0.01. Mechanical sliding generates complex folded graphene structures wherein equilibrated covalent chemical linkages impart rigidity and stability to the films examined in macroscopic friction tests. This new approach to frictional reduction has broad implications for manufacturing, transportation, and aerospace.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1002/adma.201903195
