Fig. 3: Mechanical properties of uncured and cured aerogel–silicone composites.

a Viscosity of the uncured elastomer. b Young’s modulus of the composite plotted against the aerogel volume fraction for two different aerogel particle sizes. c Percent elongation at break plotted as a function of the aerogel volume fraction. d Tensile strength of the composite plotted against aerogel volume fraction. Error bars indicate standard deviations.