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Effect of the character of the cathode surface on the growth kinetics of dispersed copper deposits

  • Theory, Production Technology, and Properties of Powders and Fibers
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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    The number of simultaneously growing dendrites determined by plotting profilometer records of basis metal surfaces is in good agreement with the value obtained with an electron microscope, which is of the order of 106 per 1 cm2 of cathode surface [5].

  2. 2.

    The character of growth of a dispersed deposit is largely determined by the conditions under which hydrogen evolution takes place on the electrode surface. The magnitude of hydrogen evolution polarization, which is determined by the nature of the basis material and the true surface of the electrode (its profile), controls the character of current density variation on the tips of dendrites, i.e., the rate of their growth. The greater the hydrogen overvoltage on a given material (vitreous carbon) and the smaller the active surface of the material (a gauze electrode) the higher is the rate of growth of dendrites, resulting in the formation of finer powders.

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Literature cited

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  5. R. D. Naybour, “Morphologies of zinc electrodeposited from zinc-saturated aqueous alkaline solution,” Electrochim. Acta,13, 763–769 (1968).

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Authors and Affiliations

  1. S. M. Kirov Ural Polytechnic Institute, USSR

    A. V. Pomosov, I. B. Murashova, V. I. Vorob'ev & N. I. Trifonova

  2. Ural Combine for the Electrolytic Refining and Processing of Copper, Uralélektromed'

    A. V. Pomosov, I. B. Murashova, V. I. Vorob'ev & N. I. Trifonova

Authors
  1. A. V. Pomosov
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  2. I. B. Murashova
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  3. V. I. Vorob'ev
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  4. N. I. Trifonova
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 1 (181), pp. 1–6, January, 1978.

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Pomosov, A.V., Murashova, I.B., Vorob'ev, V.I. et al. Effect of the character of the cathode surface on the growth kinetics of dispersed copper deposits. Powder Metall Met Ceram 17, 1–5 (1978). https://doi.org/10.1007/BF00795127

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  • DOI: https://doi.org/10.1007/BF00795127

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