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The diffusion of silica(Aerosil)-hydrosols has been studied by photon correlation spectroscopy. For data analysis the method of cumulants, proposed by Koppel, was used. Effects of charge and hydratation of the silica particles and their complicated aggregated structure required an extrapolation to the solconcentration c s  = 0 and the scattering angle θ = 0.

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Charakterisierung von Silika (Aerosil) Hydrosolen durch Photonenkorrelationsspektroskopie / Characterization of Silica(Aerosil)Hydrosols by Photon Correlation Spectroscopy