Fig. 3: Quantitative mechanical properties and durability of FTGA.
From: Ultrastrong, flexible thermogalvanic armor with a Carnot-relative efficiency over 8%
a, b Stress-strain curves for FTGA with different structures and additive materials from uniaxial tensile (a) and compressive (b) tests. c Schematic illustration of the SHPB test system (inset) and the compressive stress-strain curves of FTGA under different strain rates. d Cyclic stress-strain curves of the FTGA at tensile strains from 0% to 30%. e The variation of the thermopower (Se) after repeated stretchable cycles. f Photographs of a car compression test carried out by compressing a 35 (L)*25 (W)*2 (T) mm (where L is length, W is width, and T is thickness) FTGA specimen with a 1600 kg four-wheel car. g Thermopower of the FTGA before and after car compression, ΔT is the temperature difference.
