Abstract
SERVI1 showed complex spirals on the basal plane of cleaved zinc crystals after etching, and spiral terraced etch pits have been obtained on zinc crystals2 grown from vapour using ‘Superoxol’ etch. Presented here are two types of etch figures obtained on 99.9 per cent cadmium crystals grown from vapour. Of several etching reagents that had been tried the most suitable one was a saturated solution of picric acid in acetone and a normal time of 2 min. was decided on. For longer periods of etching the solution acted as polishing agent.
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References
Servi, I. S., Phil. Mag., 3, 63 (1958).
George, Joy, Phil. Mag., 4, 1142 (1959).
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GEORGE, J. Etch Patterns on Cadmium Crystals grown from Vapour. Nature 189, 743–744 (1961). https://doi.org/10.1038/189743b0
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DOI: https://doi.org/10.1038/189743b0
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