Morphology of Amorphous Layers Ballistically Deposited on a Planar Substrate
Abstract
We report numerical simulation of the deposition of spherical particles on a planar surface, by ballistic, straight-line trajectory transport, and assuming irreversible adhesion on contact with the surface or previously deposited particles. Our data indicate that the deposit formed has a loosely layered structure within few diameters from the surface. This structure can be explained by a model of growth via chain formation. Away from the surface we found evidence of a monotonic, power-law approach to the bulk density. Both density and contact-statistics results suggest that the deposit formed is sparse: the space-filling fraction is about 15%, and the average number of contacts is 2. The morphology of the deposit both near the surface and in the bulk seems to be a result of competition of screening and branching; nearly half of all the spheres are either single-contact dangling ends, or branching nodes with more than two contacts.
Keywords
Cite
@article{arxiv.cond-mat/9207014,
title = {Morphology of Amorphous Layers Ballistically Deposited on a Planar Substrate},
author = {B. D. Lubachevsky and V. Privman and S. C. Roy},
journal= {arXiv preprint arXiv:cond-mat/9207014},
year = {2014}
}
Comments
20 pages, TeX (plain)