Where copper alloy coated iron objects from Iron Age Britain have been
examined metallographically the method used is quite clearly
hot-dipping. Liquid copper and bronze are quite aggressive solvents
for iron and interact readily with the iron surface. The
cross-sections show the classic pattern of interface for this process.
For some further details see J.P. Northover and C.J. Salter, 1990,
"The decorative metallurgy of the Celts". Materials Characterisation,
25(1), 47-62. Since that time I have come across some better examples
but these have not yet been published anywhere. We could put the
micros on the web some time. Copper cna also be deposited on iron from
solutions of copper salts. This was done in medieval times to lay down
an elextroless copper plate on iron/steelFrom [log in to unmask] Thu Jun 22 23:53:07 2000
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Subject: Re: Use of Environmental SEM
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Dear Jim,
Pardon my ignorance, but what is SEM?
Regards
Ian Medhurst
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