This article describes a rapid supercritical extraction method for fabricating silica aerogels. By utilizing a confined mold and hydraulic hot press, monolithic aerogels can be made in eight hours or less.
Carroll, M. K., Anderson, A. M., Gorka, C. A. Preparing Silica Aerogel Monoliths via a Rapid Supercritical Extraction Method. J. Vis. Exp. (84), e51421, doi:10.3791/51421 (2014).