Abstract
AN article in the Electrical Review of July 3 by C. C. Downie describes the developments which have taken place in the last three years on research into the deposition of cobalt-nickel alloy. This alloy is at least three times as hard as nickel itself, and is more resistant to corrosion than either cobalt or nickel alone. Moreover, the process is within the bright plating category which obviates the need for subsequent buffing or polishing. The nickel used is electro-refined wire or strip and is even purer than the product obtainable from the carbonyl process. The best metallic cobalt to use is that obtained by special reduction of the oxide, such as by the Kalmus process, which is completely free from carbon and practically all other solid impurities. For all smaller work it suffices to use nickel and cobalt inter-wound in the form of wire or strip, to present a uniform surface closely akin to a solid anode.
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COBALT-NICKEL DEPOSITION. Nature 150, 187–188 (1942). https://doi.org/10.1038/150187a0
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DOI: https://doi.org/10.1038/150187a0