Please use this identifier to cite or link to this item:
doi:10.22028/D291-24130 | 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: | A SAXS study of silica aerogels / Aldo Craievich ... - Rio de Janeiro : Centro Brasileiro de Pesquisas Físicas, 1986. - (Notas de Física ; CBPF NF-86/014), S. 1-29 |
| SWD key words: | Röntgen-Kleinwinkelstreuung Aerogel Siliciumdioxid Tetramethoxylsilan |
| DDC notations: | 500 Science |
| Publikation type: | Report |
| Abstract: | Aerogels produced hypercritical drying of gels from hydrolysis of TMOS in various pH conditions and subjected to a densification process were studied by SAXS using 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 we 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=3. |
| Link to this record: | urn:nbn:de:bsz:291-scidok-22707 hdl:20.500.11880/24186 http://dx.doi.org/10.22028/D291-24130 |
| Date of registration: | 6-Aug-2009 |
| Faculty: | SE - Sonstige Einrichtungen |
| Department: | SE - INM Leibniz-Institut für Neue Materialien |
| Collections: | INM SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Files for this record:
| File | Description | Size | Format | |
|---|---|---|---|---|
| aeg085.pdf | 704,5 kB | Adobe PDF | View/Open |
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