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Morphology of Amorphous Layers Ballistically Deposited on a Planar Substrate | | B. D. Lubachevsky
; V. Privman
; S.C. Roy
; | | Date: |
15 Jul 1992 | | Journal: | Phys. Rev. E 47 (1993) 48-53 DOI: 10.1103/PhysRevE.47.48 | | Subject: | cond-mat | | 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. | | Source: | arXiv, cond-mat/9207014 | | Services: | Forum | Review | PDF | Favorites | |
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