Abstract
Measurement of the fractal dimension, , of colloidal aggregates of small silica particles is reported. We observe power-law decay of the structure factor by both light and x-ray scattering showing that the aggregates are fractal. is found to be 2.12±0.05, which is intermediate between recent numerical results for the kinetic models of diffusion-limited aggregation () and cluster aggregation (), but is rather close to the value for lattice animals (), which are equilibrium structures.
- Received 26 March 1984
DOI:https://doi.org/10.1103/PhysRevLett.52.2371
©1984 American Physical Society