The Art of Electro-metallurgy Including All Known Processes of Electro-deposition

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Longmans, Green, and Company, 1887 - Electrometallurgy - 397 pages
 

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Page 6 - It occurred to me, therefore, that if the surface of the plate was engraved, an impression might be obtained. This was found to be the case ; for on detaching the precipitated metal...
Page 15 - I accordingly determined to make an experiment on a very prominent copper medal. It was placed in a voltaic circuit, as already described, and deposited a surface of copper on one of its sides, to about the thickness of a shilling. I then proceeded to get the deposition off. In this I experienced some difficulty, but ultimately succeeded. On examination with a lens, every line was as perfect as the coin from which it was taken.
Page 10 - ... and easily separated ; on the other hand, if I made them thicker, and of a little finer material, the action was slower, but the metallic deposition was as solid and ductile as copper formed by the usual methods, — indeed, when the action was exceedingly slow, I have had a metallic deposition apparently much harder than common sheet copper, but more brittle.

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