Numéro
J. Phys. IV France
Volume 03, Numéro C8, Décembre 1993
IX International Conference on Small Angle Scattering
Page(s) C8-365 - C8-368
DOI http://dx.doi.org/10.1051/jp4:1993875
IX International Conference on Small Angle Scattering

J. Phys. IV France 03 (1993) C8-365-C8-368

DOI: 10.1051/jp4:1993875

Short distance correlations in fractal aggregates : numerical simulations and SANS experiments on silica aerogels

A. HASMY, M. FORET, J. PELOUS and R. JULLIEN

Laboratoire de Science des Matériaux Vitreux, Université Montpellier II, Place Eugène Bataillon, 34095 Montpellier cedex 5, France


Abstract
The scattering function S(q) has been computed for simulated fractal aggregates using off-lattice cluster-cluster models. The curve log S(q) versus log q goes through a broad minimum followed by damped oscillations at large q values. These simulations are compared with experimental SANS results on colloidal silica aerogels. The agreement between simulations and experiments is qualitatively good.



© EDP Sciences 1993