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Aerosol gels (2010)

Gerving, Corey ; Chakrabarti, Amitabha ; Sorensen, Christopher M. ; [et al.]

In: CASI

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Publication Date: 2019-08-26

Description: An improved process for the production of ultralow density, high specific surface area gel products is provided which comprises providing, in an enclosed chamber, a mixture made up of small particles of material suspended in gas; the particles are then caused to aggregate in the chamber to form ramified fractal aggregate gels. The particles should have a radius (a) of up to about 50 nm and the aerosol should have a volume fraction (f.sub.v) of at least 10.sup.-4. In preferred practice, the mixture is created by a spark-induced explosion of a precursor material (e.g., a hydrocarbon) and oxygen within the chamber. New compositions of matter are disclosed having densities below 3.0 mg/cc.

Keywords: Composite Materials

Format: application/pdf

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