Abstract
THE formation of a hexagonal modification of an electro-deposited chromium has been discussed since the first announcement was made. In 1935, L. Wright et al. 1 determined the conditions for the production of the hexagonal form from chromic acid baths, and recently C. A. Snavely2 fully examined the structural characteristics of the electro-deposited chromium from chromic acid baths containing sulphate ion.
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References
Wright, L., Hirst, H., and Riley, J., Discuss. Farad. Soc., 1253 (1935).
Snavely, C. A., Trans. Electrochem. Soc., 92, 537 (1947).
Siemense and Halske, Ger. Pat. 754,360, Nov. 6, 1933.
Ishida, T., Noda, Y., and Okada, H., J. Metal Finishing Soc. Japan, 10, 381 (1959).
Quaely, M. F., Proc. Fourteenth Ann. Conv. Amer. Electroplaters' Soc., 48 (1953).
Sasaki, K., and Sekito, S., J. Soc. Chem. Indust. Japan, 33, B, 482 (1930).
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OKADA, H., ISHIDA, T. Hexagonal Modification of Black Chromium Electro-deposit. Nature 187, 496–497 (1960). https://doi.org/10.1038/187496a0
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DOI: https://doi.org/10.1038/187496a0
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