Today I removed my ACME silver plated cryo receptacle from more than 20 days' burn in through my refrigerator. I noticed the silver was more 'orange' in color, as if copper had mixed with it. Is this possible or just an optical illusion?
what color is your fridge? after a similar burn in ( the equivilent of 27 years in duration) all my cryoed recepticals are now avocado. is there something sinister going on here? FWIW, we have a stainless steel sub-zero.
Lighten up boys. There is some solid state diffusion that can occur in the copper/silver system but at room temperature I do not think you have enough time to wait for it to cause you a problem. If you continue to be worried, contact your University's metallurgy department for a phase diagram of the system and an explanation. What you report is surely an oxidation layer that can be easily removed.
Sean-d, I noticed it first on the plate that holds the screws! I know it was silver when it was installed. Perhaps it is oxidation--I also noticed it on the insides.
As to wear, the plugs were just used once--about ten days each. They were left alone. It's a new receptacle.
My understanding is yes it will. That is why siver plated copper is often first plated with nickel of some other metal. The issue becomes the nickel, how does it effect the signal?
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