Surface fractals in irreversible aggregation

Publisher Website
Google Scholar
Abstract
We introduce a mechanism to model irreversible aggregation of clusters at high concentration and investigate it by Monte Carlo simulations. Depending on the cluster diffusivity the aggregates are surface fractals, volume fractals, or nonfractal objects. Our results are compared with experiments on colloidal aggregation where, depending on concentration, either volume or surface fractals are observed. The model also provides a new, kinetic interpretation of random percolation.