Friction. Macroscale superlubricity enabled by graphene nanoscroll formation. Academic Article

abstract

• Friction and wear remain as the primary modes of mechanical energy dissipation in moving mechanical assemblies; thus, it is desirable to minimize friction in a number of applications. We demonstrate that superlubricity can be realized at engineering scale when graphene is used in combination with nanodiamond particles and diamondlike carbon (DLC). Macroscopic superlubricity originates because graphene patches at a sliding interface wrap around nanodiamonds to form nanoscrolls with reduced contact area that slide against the DLC surface, achieving an incommensurate contact and substantially reduced coefficient of friction (~0.004). Atomistic simulations elucidate the overall mechanism and mesoscopic link bridging the nanoscale mechanics and macroscopic experimental observations.

authors

• Erdemir, Ali

published proceedings

• Science

altmetric score

• 161.17

author list (cited authors)

• Berman, D., Deshmukh, S. A., Sankaranarayanan, S., Erdemir, A., & Sumant, A. V.

citation count

• 479

complete list of authors

• Berman, Diana||Deshmukh, Sanket A||Sankaranarayanan, Subramanian KRS||Erdemir, Ali||Sumant, Anirudha V

publication date

• June 2015

publisher

• American Association for the Advancement of Science (AAAS)  Publisher

published in

• Science  Journal

keywords

• 0903 Biomedical Engineering

PubMed Central ID

• 25977372

Digital Object Identifier (DOI)

• 10.1126/science.1262024

start page

• 1118

end page

• 1122

volume

• 348

issue

• 6239

URL

• http://dx.doi.org/10.1126/science.1262024