brass and nickle silver

[jim currie]

Jim, Hi ! While it's true that copper is an excellent conductor, you are correct - it's oxide (cupric oxide) is very poor. While it may seem logical that less conductive nickle silver would have an even less conductive, that's not how chemistry works. I don't have the proof,(though will spend some time checking for evidence) the molecular configuration of nickle silver oxide may be nearly as conductive as the alloy itself. Chemistry is a BEAR, and does not follow standard logic in its operations. Hope I can at least find a citation. :ugeek: Bob C.

all the information i found on both NiO greenish nickle oxide , Ni2O2 black nickle oxide , CuO black copper oxide and Cu20 dark red almost black copper oxide were all listed as semi conductors. some of the attributes often attributed to nickle silver( nickle brass as some metalergist call it ) are really the alloy silver nickle, silver 85% nickle 15% used in electrical contacts.
Jim