ABSTRACT
284In the past few decades, aerogels have attracted great interest from the researchers due to their unique structure and associated properties such as insulating capability, extremely low density, high porosity, high specific surface area, low dielectric constant, and low thermal conductivity. This chapter explains and compares different aerogel fabrication techniques such as supercritical drying (SCD), ambient pressure drying (APD), and freeze drying along with their mechanisms, advantages, and disadvantages. The applications of aerogels in various fields are also described in brief.
