Copper Discoloration
Copper Discoloration
(OP)
When copper conductors or wire overheat slowly due to slightly excessive current flow, the color of the copper first takes on a deeper reddish color. If the overheating is continuous that color tends to stabilize and remain constant. If the circuit is disconnected and allowed to remain unused for a period of time, the copper takes on the usual green color for copper oxide.
What causes that reddish color?
Is that a different oxide?
Any other potentially useful information would be appreciated.
Thank You.
What causes that reddish color?
Is that a different oxide?
Any other potentially useful information would be appreciated.
Thank You.
PUMPDESIGNER





RE: Copper Discoloration
look here:
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(just so you know I searched: {Color of copper oxide} on google to find that website.)
Nick
I love materials science!
RE: Copper Discoloration
See the bottom of this page and referenced pages:
http://www.answers.com/topic/copper-3
Mike Halloran
Pembroke Pines, FL, USA
RE: Copper Discoloration
RE: Copper Discoloration
Mike Halloran
Pembroke Pines, FL, USA
RE: Copper Discoloration
= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: Copper Discoloration
Sorry it took so long to get back to you, I was at a conference and then got sick.
Hello Mike, I spoke with you once on the telephone, forgot about what though. Tarry Baker had me speak at some inspectors thingy about 10-12 years ago, perhaps it was then.
I am analyzing electrical transient failures. Normally transient failures (usually from lightning), are easily discernable from long term overheating problems. But at this moment I am working on discerning Short Circuit/Ground Fault from lightning.
You guys have any information on that topic?
PUMPDESIGNER
RE: Copper Discoloration
Might have been a different MH; there are at least ten on AOL.
Mike Halloran
Pembroke Pines, FL, USA