Adding 0.5% graphene to grease lowers its peak operating temperature by about 30%

The team mixed graphene nanoplatelets, supplied by Nova Graphene, into a commercial lithium grease at concentrations of 0, 0.25, 0.5, 0.75, 1 and 2 wt%. The platelets are 50 nm to 5 µm across and under 1.7 nm thick. They tested each formulation ten times in a block-on-ring setup, with an aluminum block pressed against a rotating steel ring (1,000 rpm, 4.9 N load, 360 seconds). Temperature was recorded with an infrared camera.

Researchers at Ontario Tech University in Canada have used graphene nanoplatelets to cool and protect a commercial lithium grease. They also built a machine learning framework that predicts how such greases heat up and wear over time.The team mixed graphene nanoplatelets, supplied by Nova Graphene, into a commercial lithium grease at concentrations of 0, 0.25, 0.5, 0.75, 1 and 2 wt%. The platelets are 50 nm to 5 µm across and under 1.7 nm thick. They tested each formulation ten times in a block-on-ring setup, with an aluminum block pressed against a rotating steel ring (1,000 rpm, 4.9 N load, 360 seconds). Temperature was recorded with an infrared camera.

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