Has anyone tried surface hardening of 990 gold. Would like to have
more info in this regard. Is it sufficient if 99of Gold is present or
we need to push it up further by another 0.3. In this case we will
have about 0.5 to play around with.
there is a manufacturer who impregnates the near pure gold
surface with diamond to make it more scratch resistant, but i
don’t know (and doubt) that it makes the whole article more bend
resistant. this technology is at least 5 years old.
in a recent jck, in the ‘new products’ area, there is an
introduction of a new, virtually pure gold alloy that is touted
as having the wearability of 18k. the manufacturer puts a minute
amount of tungstun ( i think, don’t crucify me if i’m wrong ). i
believe where the technology lies is how to get the ‘alloy’ to be