Negative Friction Coefficients in Superlubric Graphite-Hexagonal Boron Nitride Heterojunctions.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.076102
Abstract: Negative friction coefficients, where friction is reduced upon increasing normal load, are predicted for superlubric graphite-hexagonal boron nitride heterojunctions. The origin of this counterintuitive behavior lies in the load-induced suppression of the moiré superstructure out-of-plane… read more here.
Keywords: superlubric graphite; hexagonal boron; friction coefficients; friction ... See more keywords
Origin of Friction in Superlubric Graphite Contacts.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.126102
Abstract: More than thirty years ago, it was theoretically predicted that friction for incommensurate contacts between atomically smooth, infinite, crystalline materials (e.g., graphite, MoS_{2}) is vanishing in the low speed limit, and this corresponding state was… read more here.
Keywords: friction superlubric; superlubric graphite; graphite contacts; friction ... See more keywords