Fig. 3: Mechanical analysis and simulations.
From: Large-scale assembly of isotropic nanofiber aerogels based on columnar-equiaxed crystal transition
a, b Structural evolutions of ASNF aerogels in a compression-release cycle and simulation of a nonlinear finite element model. c Compression-recovery profile comparison under 80% strain during experiment and simulation. d An optical image showing an 18 cm3 aerogel (ρ = 0.59 mg cm−3) resting on the tip of a dandelion. e Infrared images of ASNF aerogels when illuminated by a laser from perpendicular and transection directions with a wavelength at 820 nm. f Pore size distribution of ASNF aerogels derived from automated mercury porosimeter. g Thermal conductivity versus temperature profiles of initial lamellar sponges obtained by SBS, anisotropic aerogels from directional freezing, and our aerogels. h Schematic of the heat transfer process in separate cellular ASNF aerogels. i Room temperature thermal conductivities in air versus temperature resistances for our aerogels and other previously reported ultralight materials. Numbers in the charts represent relevant references.
