Researchers have demonstrated 'structural superlubricity' between graphite and graphene or between two graphene layers with measured friction coefficients on the order of 0.0001 or lower under specific incommensurate crystal-alignment conditions — among the lowest friction coefficients ever measured between solid surfaces, orders of magnitude below the roughly 0.1-0.6 typical of ordinary lubricated metal-on-metal contact.
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Researchers have demonstrated 'structural superlubricity' between graphite and graphene or between two graphene layers with measured friction coefficients on the order of 0.0001 or lower under specific incommensurate crystal-alignment conditions — among the lowest friction coefficients ever measured between solid surfaces, orders of magnitude below the roughly 0.1-0.6 typical of ordinary lubricated metal-on-metal contact.
The lowest coefficient of friction confirmed between two solid surfaces under laboratory conditions, in the regime known as 'superlubricity' where friction approaches zero.
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Limits Registry. LR-LOWEST-FRICTION-COEFFICIENT-SOLID-LUBRICANT. Lowest friction coefficient measured for a solid lubricant material. 2026.