Ultralight and fire-resistant ceramic nanofibrous aerogels with temperature-invariant superelasticity.

ABSTRACT: Ultralight aerogels that are both highly resilient and compressible have been fabricated from various materials including polymer, carbon, and metal. However, it has remained a great challenge to realize high elasticity in aerogels solely based on ceramic components. We report a scalable strategy to create superelastic lamellar-structured ceramic nanofibrous aerogels (CNFAs) by combining SiO₂ nanofibers with aluminoborosilicate matrices. This approach causes the random-deposited SiO₂ nanofibers to assemble into elastic ceramic aerogels with tunable densities and desired shapes on a large scale. The resulting CNFAs exhibit the integrated properties of flyweight densities of >0.15 mg cm^-3, rapid recovery from 80% strain, zero Poisson's ratio, and temperature-

SUBMITTER: Si Y 

PROVIDER: S-EPMC5922795 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature