Please use this identifier to cite or link to this item: doi:10.22028/D291-24043
Title: Textural characteristics of silica aerogels from SAXS experiments
Author(s): Lours, Thierry
Zarzycki, Jerzy
Craievich, Aldo F.
Aegerter, Michel A.
Language: English
Year of Publication: 1990
OPUS Source: Journal of non-crystalline solids. - 121. 1990, 1/3, S. 216-220
SWD key words: Röntgen-Kleinwinkelstreuung
Dichte <Physik>
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: Small angle X-ray scattering measurements on silica aerogels give systematically low values for the solid phase density. In order to explain these results, a hierarchical structure is proposed. Textural parameters such as specific surface area, size and density of clusters, and pore size are a function of the number of levels in the structure. Experimental values are consistent with values calculated for a hierarchy of two to four levels, depending on the initial sol concentration. The model can explain the fractal features for lower density aerogels. © 1990.
Link to this record: urn:nbn:de:bsz:291-scidok-21705
Date of registration: 29-Jun-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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