Method of casting aerogels

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:868910

Poco, John F ^[1]

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1. Livermore, CA

The invention describes a method for making monolithic castings of transparent silica aerogel with densities in the range from 0.001 g/cm.sup.3 to 0.6 g/cm.sup.3. Various shapes of aerogels are cast in flexible polymer molds which facilitate removal and eliminate irregular surfaces. Mold dimensions are preselected to account for shrinkage of alcogel which occurs during the drying step of supercritical extraction of solvent.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5242647
• OSTI ID: 868910
• Country of Publication: United States
• Language: English

Related Subjects

method
casting
aerogels
describes
monolithic
castings
transparent
silica
aerogel
densities
range
001
cm
various
shapes
cast
flexible
polymer
molds
facilitate
removal
eliminate
irregular
surfaces
mold
dimensions
preselected
account
shrinkage
alcogel
occurs
drying
step
supercritical
extraction
solvent
supercritical extraction
various shapes
irregular surfaces
flexible polymer
facilitate removal
silica aerogel
drying step
transparent silica
regular surface
/264/65/423/