J. Phys. IV France 03 (1993) C8-365-C8-368
Short distance correlations in fractal aggregates : numerical simulations and SANS experiments on silica aerogelsA. 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
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