| Numéro |
J. Phys. Colloques
Volume 50, Numéro C4, Avril 1989
Proceedings of the 2nd International Symposium on Aerogels ISA 2 |
|
|---|---|---|
| Page(s) | C4-233 - C4-238 | |
| DOI | https://doi.org/10.1051/jphyscol:1989438 | |
Proceedings of the 2nd International Symposium on Aerogels
ISA 2
J. Phys. Colloques 50 (1989) C4-233-C4-238
DOI: 10.1051/jphyscol:1989438
1 Department of Structure and Properties of the Materials, Faculty of Science, University of Cádiz, Apartado 40, Puerto Real, Cádiz, Spain
2 Laboratory of Science of Vitreous Materials, CNRS LA-1119, University of Montpellier II, France
ISA 2
J. Phys. Colloques 50 (1989) C4-233-C4-238
DOI: 10.1051/jphyscol:1989438
TEXTURAL CHARACTERISTICS OF AEROGELS OBTAINED FROM SONOGELS
N. DE LA ROSA-FOX1, L. ESQUIVIAS1 et J. ZARZYCKI21 Department of Structure and Properties of the Materials, Faculty of Science, University of Cádiz, Apartado 40, Puerto Real, Cádiz, Spain
2 Laboratory of Science of Vitreous Materials, CNRS LA-1119, University of Montpellier II, France
Résumé
Le traitement ultrasonore de mélanges de TEOS + H2O permet d'obtenir des gels sans utilisation d'alcool comme solvant commun. L'influence de l'énergie fournie par les ultrasons et de la température de gélification sur la texture des aerogels résultants a été étudiée pour déterminer les conditions optimales pour le frittage.
Abstract
Ultrasonic treatment of mixtures of TEOS + H2O enables gels to be obtained without the necessity of using alcohol as a common solvent. The influence of energy supplied by the ultrasounds and gelation temperature on the texture of the resulting aerogels were studied in order to determine the optimal conditions for sintering.