Please use this identifier to cite or link to this item: doi:10.22028/D291-24141
Title: Estudo de saxs am sóis, géis e vidros de sílica obtidos pelo processo sol-gel
Author(s): Dos Santos, Dayse Iara
Aegerter, Michel A.
Craievich, Aldo F.
Language: (Other)
Year of Publication: 1989
OPUS Source: Cerâmica. - 35. 1989, 229, S. 13-17
SWD key words: Sol-Gel-Verfahren
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: -
Systematic SAXS studies have been performed at the LURE Synchrotran, Orsay, using an intense beam of point like cross-section to obtain information about the sol wet gel dried gel silica glass transformation. The intensity curves have been analysed in term of power law in log-log plots, whose exponent is related to mass and surface fractal dimensions of the structure. It was found that almost all phases present fractal structures and for the case of basic gels, is of hierarchical nature. The aerogels are formed by a dense matrix, with a smooth surface and exhibit a very narrow auto-similarity range that gives a mass fractal dimension.
Link to this record: urn:nbn:de:bsz:291-scidok-22974
Date of registration: 13-Aug-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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