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> Dear Jo, thank you for the info about pure gold and its use in
> foil form in dentistry. Would this work on the same principle as
> kum boo? Kind regards, Rex
>
Rex, The technic of "adhering" pieces of metal (either the same
metal or different ones) in the Kum Boo process depends upon
increasing the velocity of the molecules with-in the pieces by the
addition of some heat and obtaining intimacy of contact by
burnishing well. The way I think about how the adherence occurs is:
some of the molecules at the surface of each piece escape into the
surface of the opposite piece and this minimal exchange of molecules
at the surfaces results in the join. It is not truly a fusing of the
pieces.
The welding of pieces of gold in the pure state with the elimination
of any contaminates (by annealing just before) takes place at room
temperature, but with a light thrust or pressure delivered over
multiple points on the surface. This is repeated many times until
the desired mass is accomplished.
I don't know if the same welding process can be accomplished with
fine silver if properly prepared, but I would think it indeed might
work. I was told many years ago that this was a unique property of
gold, but I am beginning to question it. Might be worth an experiment.
HTH Joe Dule
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