SMALL-ANGLE SCATTERING STUDIES OF FREEZE-DRIED SILICA-GELS

Authors
POSSELT D EGEBERG ED PEDERSEN JS MORTENSEN K
Citation
D. Posselt et al., SMALL-ANGLE SCATTERING STUDIES OF FREEZE-DRIED SILICA-GELS, Journal de physique. IV, 3(C8), 1993, pp. 353-356
Citations number
15
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
3
Issue
C8
Year of publication
1993
Pages
353 - 356
Database
ISI
SICI code
1155-4339(1993)3:C8<353:SSSOFS>2.0.ZU;2-J
Abstract
SAXS data for a series of five acid-catalysed freeze-dried silica gels are analysed within a mass-fractal model. It is found that the correl ation length decreases with prolonged aging. The microstructure of the freeze-dried gels compares well with what is found for wet gels and a erogels.