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Journal of Materials Science

, Volume 3, Issue 4, pp 446–448 | Cite as

A transmission electron microscope study of the structure of electrolytic nickel

  • E. J. Suoninen
  • T. Hakkarainen
Letters

Conclusions

In conclusion, during the electrolysis of nickel from acid sulphate solutions, the coverage of the cathode by a possible colloidal film of nickel hydroxide is the decisive factor. In its presence, the cathode exhibits a very fine-grained, randomly oriented structure. If the film is removed, the structure consists at these current densities of relatively large grains with a very strong texture [100] perpendicular to cathode. The large grains are often twinned, but no individual stacking faults are found.

The inhibitive action of the hydroxide film can be eliminated by chloride ions [2], or it can be replaced by an organic additive [3].

Keywords

Polymer Sulphate Chloride Electron Microscope Nickel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    E. J. Suoninen, J. Matls. Sci. 2 (1967) 44.Google Scholar
  2. 2.
    G. Maurin and M. Froment, Métaux 42 (1966) 102.Google Scholar
  3. 3.
    J. A. Crossley, P. A. Brook, and J. W. Cuthbertson, Electrochim. Acta 11 (1966) 1153.Google Scholar
  4. 4.
    J. K. Dennis and J. J. Fuggle, Electroplating and Metal Finishing (January 1968) p. 16.Google Scholar
  5. 5.
    H. Fischer, “Elektrolytische Abscheidung und Elektrokristallisation von Metallen” (Springer, Berlin, 1954).Google Scholar

Copyright information

© Chapman and Hall 1968

Authors and Affiliations

  • E. J. Suoninen
    • 1
  • T. Hakkarainen
    • 2
  1. 1.Institute of Technical PhysicsUniversity of OuluOuluFinland
  2. 2.Laboratory of Physical MetallurgyInstitute of TechnologyOtaniemiFinland

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