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Electroless, diffusion limited aggregation of lead dendrites

Author

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  • Baki, M. Abdel
  • Badr, L.

Abstract

Two-dimensional lead Pb dendritic systems are prepared by electroless deposition from a lead nitrate gel solution and a zinc Zn metal cylinder in a circular cell. The box counting method is used to confirm that the lead dendritic structures obtained have fractal character. Results show that the fractal dimension of the dendrites formed is affected by the lead nitrate concentration and the medium properties which is varied by changing the percentage of gelatin in the solution. Both variables affect migration and aggregation of the lead particles and hence the physical emergence of the system. It was found that the fractal dimension has a maximum value for the aggregate formed from 0.06 M Pb(NO3)2 in 5 % gelatin. In addition, the percent coverage of the lead deposits was determined and showed analogous variation with the fractal dimension over the range of Pb(NO3)2 concentration and gelatin percentage studied.

Suggested Citation

  • Baki, M. Abdel & Badr, L., 2021. "Electroless, diffusion limited aggregation of lead dendrites," Chaos, Solitons & Fractals, Elsevier, vol. 143(C).
    • Handle: RePEc:eee:chsofr:v:143:y:2021:i:c:s0960077920309772
    DOI: 10.1016/j.chaos.2020.110586
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    References listed on IDEAS

    as
    1. Santos, N.M. & Santos, D.M.F., 2018. "A fractal dimension minimum in electrodeposited copper dendritic patterns," Chaos, Solitons & Fractals, Elsevier, vol. 116(C), pages 381-385.
    2. Braga, F.L. & Mattos, O.A. & Amorin, V.S. & Souza, A.B., 2015. "Diffusion limited aggregation of particles with different sizes: Fractal dimension change by anisotropic growth," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 429(C), pages 28-34.
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