P. Colombo—contributing editor
Novel Open-Cellular Glass Foams for Optical Applications
Article first published online: 29 SEP 2010
© 2010 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 2, pages 436–441, February 2011
How to Cite
Ohl, C., Kappa, M., Wilker, V., Bhattacharjee, S., Scheffler, F. and Scheffler, M. (2011), Novel Open-Cellular Glass Foams for Optical Applications. Journal of the American Ceramic Society, 94: 436–441. doi: 10.1111/j.1551-2916.2010.04121.x
This work was financially supported by DFG and DAAD, Germany, and CSIR, India.
- Issue published online: 7 FEB 2011
- Article first published online: 29 SEP 2010
- Manuscript No. 27739. Received May 30, 2010; approved August 9, 2010.
Cellular catalyst supports gain an increasing importance for exhaust gas treatment and environmental catalysis. In combination with photocatalytical active components, a high light transmittance is necessary for high-efficiency activation. In order to obtain optically suitable glass foams, a novel process was developed based on the use of a preceramic polymer. During thermal decomposition, the polymer provides highly dispersed silicon dioxide (SiO2), which simultaneously reacts with a glass modifier to form a borosilicate glass. Because of a low processing temperature of 1050°C or less, the open-cellular structure was retained and is therefore suitable for coatings and applications where high permeability and optical transmittance are required.