SAS EXPERIMENTS ON INORGANIC GELS

Aluminosilicate and alumina gels have been investigated by SANS. Some curves were compared with SAXS data for estimating the incoherent back ground due to the H-content of the samples. For alumino-silicate gels the results indicate a growing substitution of Si by Al ions in the ne twork with the decreasing water content of the initial solution. On th e curves of alumina gels shoulders can be observed which may belong to different characteristic lengths in the gel structure.