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

A. Hasmy , M. Foret , J. Pelous , R. Jullien

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.

Domaines: Articles anciens

A. Hasmy, M. Foret, J. Pelous, R. Jullien. Short distance correlations in fractal aggregates : numerical simulations and SANS experiments on silica aerogels. Journal de Physique IV Proceedings, 1993, 03 (C8), pp.C8-365-C8-368. ⟨10.1051/jp4:1993875⟩. ⟨jpa-00252306⟩