A transmission electron microscope study of the structure of electrolytic nickel

E. Suoninen, Tero Hakkarainen

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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].

Original languageEnglish
Pages (from-to)446 - 448
Number of pages3
JournalJournal of Materials Science
Issue number4
Publication statusPublished - 1968
MoE publication typeA1 Journal article-refereed


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