Fig. 2: In situ mechanical characterization.
From: Hollow medium-entropy alloy nanolattices with ultrahigh energy absorption and resilience

a, b Series of SEM images showing the in situ deformation behavior of the thin-walled MEA nanolattices under cyclic uniaxial compression. c Corresponding stressāstrain curves of the thin-walled MEA nanolattice under repeated compression. d Calculated energy absorption per unit volume and loss coefficient for the MEA nanolattice in each loading cycle.