Textural characterization of silica and silica-alumina gels: Comparison of different techniques
β Scribed by J. P. Reymond; I. Biay; J. F. Quinson
- Publisher
- Springer
- Year
- 1997
- Tongue
- English
- Weight
- 383 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0928-0707
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π SIMILAR VOLUMES
According to their low densities, low refractive indices, Silica-titania and silica-alumina aerogels were prepared by the small pore sizes, and good transparencies, much attention two-step hydrolysis of metal alkoxides, the sol-gel polymerization has been given to silica aerogels in recent years for
By the use of a time domain reflectomery method, dielectric measurements were carried out on silica, alumina, and silicaalumina gel suspensions (five types with composition varying between 0.3 < Si/Al atomic ratio <0.8) in the frequency range of 100 kHz to 20 GHz. For all the gels, a relaxation peak