Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Fusion Technology Laboratory, University of Illinois, Urbana, Illinois 61801
- OSTI Identifier:
- 6316914
- Resource Type:
- Journal Article
- Journal Name:
- J. Vac. Sci. Technol., A; (United States)
- Additional Journal Information:
- Journal Volume: 7:3
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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
Citation Formats
Kim, N K, Kim, K, Payne, D A, and Upadhye, R S. Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing. United States: N. p., 1989.
Web. doi:10.1116/1.576250.
Kim, N K, Kim, K, Payne, D A, & Upadhye, R S. Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing. United States. https://doi.org/10.1116/1.576250
Kim, N K, Kim, K, Payne, D A, and Upadhye, R S. 1989.
"Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing". United States. https://doi.org/10.1116/1.576250.
@article{osti_6316914,
title = {Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing},
author = {Kim, N K and Kim, K and Payne, D A and Upadhye, R S},
abstractNote = {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.},
doi = {10.1116/1.576250},
url = {https://www.osti.gov/biblio/6316914},
journal = {J. Vac. Sci. Technol., A; (United States)},
number = ,
volume = 7:3,
place = {United States},
year = {Mon May 01 00:00:00 EDT 1989},
month = {Mon May 01 00:00:00 EDT 1989}
}
Other availability
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.