skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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. doi:10.1116/1.576250.
Kim, N K, Kim, K, Payne, D A, and Upadhye, R S. Mon . "Fabrication of hollow silica aerogel spheres by a droplet generation method and sol--gel processing". United States. doi: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},
journal = {J. Vac. Sci. Technol., A; (United States)},
number = ,
volume = 7:3,
place = {United States},
year = {1989},
month = {5}
}