Effect of Collision Efficiency on the Evolution of the Surface of Diffusion-Limited Deposits

✍ Scribed by Volodymyr V. Tarabara; Mark R. Wiesner

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 79 KB
• Volume: 237
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.2001.7479

✦ Synopsis

The effect of the collision efficiency of particles deposited onto a rough substrate and the evolution of the deposit profile were investigated using 2D on-lattice Monte Carlo simulations. The case of a diffusive long-range transport regime as representative of the colloidal deposition from the suspended phase was considered. The initial profile of the substrate was modeled as a sinusoidal wave. The decay of the initial profile in the course of deposition was monitored by a decrease in the Fourier amplitude A w corresponding to the wavelength of the initial roughness. The best "memory" of the deposit, i.e., the slowest decay of A w , was found to correspond to intermediate values (∼0.1) of the collision efficiency.