Stress-Activated Friction in Sheared Suspensions Probed with Piezoelectric Nanoparticles (IMAGE)
Caption
As a dense suspension of piezoelectric nanoparticles shear thickens due to a transition from frictionless (gray) to frictional (red) particle–particle interactions, friction-induced piezoelectricity in the contacting particles generates electric charge, which in turn increases the ac conductance of the surrounding fluid.
Credit
(Figure courtesy of Kim et al.)
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