Please use this identifier to cite or link to this item: doi:10.22028/D291-24032
Title: A SAXS study of silica aerogels
Author(s): Craievich, Aldo F.
Aegerter, Michel A.
Dos Santos, Dayse Iara
Woignier, T.
Zarzycki, Jerzy
Language: English
Year of Publication: 1986
OPUS Source: Journal of non-crystalline solids. - 86. 1986, 3, S. 394-406
SWD key words: Aerogel
Biologischer Expositionstest
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: Aerogels produced by hypercritical drying of gels from hydrolysis of TMOS in various pH conditions and subjected to a densification process were studied by SAXS using the LURE synchrotron facility. The evaluation of scattering data combined with BET measurements leads to a model of aerogels consisting of a light density matrix in which meso- and macro-pores are embedded. No fractal features were observed for the gels, the Porod's limit having an exponent n = 4. This could mean that either these aerogels are not fractals or that the SAXS method suffers from an inherent ambiguity for fractal dimension D = © 1986.
Link to this record: urn:nbn:de:bsz:291-scidok-21589
Date of registration: 26-May-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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