Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing

Journal Article · Mon May 01 00:00:00 EDT 1989 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.576250· OSTI ID:6316914

Kim, N K; Kim, K; Payne, D A; Upadhye, R S

A system was designed to produce hollow silica aerogel spheres by combining a droplet generation method with sol--gel processing. Simultaneous passage of an alkoxide solution and a fill gas, through a dual-nozzle system, formed a continuous stream of hollow droplets in the fluid state. The spherical droplets were levitated in a basic atmosphere containing ammonia which converted the sol into a rigid gel state. Supercritical drying was used for the elimination of residual solvents without shrinkage and cracking.

• Research Organization: Fusion Technology Laboratory, University of Illinois, Urbana, Illinois 61801
• OSTI ID: 6316914
• Journal Information: J. Vac. Sci. Technol., A; (United States), Vol. 7:3
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ETHYL RADICALS
FABRICATION
SILICATES
CATALYSTS
ETHANOL
EXPERIMENTAL DATA
HYDROLYSIS
INERTIAL CONFINEMENT
NITRIC ACID
NUCLEAR FUELS
ALCOHOLS
ALKYL RADICALS
CHEMICAL REACTIONS
CONFINEMENT
DATA
DECOMPOSITION
ENERGY SOURCES
FUELS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
LYSIS
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PLASMA CONFINEMENT
RADICALS
REACTOR MATERIALS
SILICON COMPOUNDS
SOLVOLYSIS
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems