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Heat patinas on copper-plated fine silver


#1

I am experimenting with partially copper-plating sintered fine
silver, in preparation for creating patina effects. Sometimes (after
plating) I heat and quench the samples to create copper oxides, and
with longer heating the copper seems to disappear, but there can be
a faint warm tone left on the surface. I want to understand whether
the copper is going. Is it ‘burning off’ or is it migrating into the
silver, or both? Thanks in advance!

Susan Ellenton


#2
I heat and quench the samples to create copper oxides, and with
longer heating the copper seems to disappear, but there can be a
faint warm tone left on the surface. I want to understand whether
the copper is going. Is it 'burning off' or is it migrating into
the silver, or both? 

It is diffusing into the silver and the resulting alloy on the
surface looks a little different hence the “warm tone”

James Binnion
James Binnion Metal Arts