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The fractal study of Cu-Ni layer accumulation during electrodeposition under diffusion-controlled condition
, Article Materials Research Bulletin ; Volume 42, Issue 9 , 2007 , Pages 1769-1776 ; 00255408 (ISSN) ; Dolati, A ; Sharif University of Technology
2007
Abstract
The fractal study of thin layer films has been concerned by numerous studies, but it is a novel idea to use this method for interpretation of layer formation during electrocrystallization, simultaneously. In present study, Scharifker's equations were derived for instantaneous and progressive nucleation and 3D growth of hemispherical centers under diffusion-controlled condition to calculate in situ change of fractal dimension of surface. It was assumed that the layer could be formed completely when fractal dimension of surface inclined to 2. Moreover, the fractal analysis of AFM images has confirmed the presumed model. © 2006 Elsevier Ltd. All rights reserved