Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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How to avoid green corrosion of copper material after silver plating
I would like to ask about the issue refer to by my headline.. please give me further info on this.
silver plating of copper material - Malaysia
March 3, 2009
March 4, 2009
Hi, Laily. The silver plating is apparently not thick enough or is too porous.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
First of two simultaneous responses --
Consider to use pre-silver plating.
Dominik Michalek- Mexico City, Mexico
March 5, 2009
Second of two simultaneous responses -- March 5, 2009
Copper and silver migrate into each other with a vengeance at room temperature and with more vengeance with heat!
You must use a difusion barrier between the copper and the silver. Use nickel or palladium.
Robert H Probert
Robert H Probert Technical Services
Garner, North Carolina
March 6, 2009
ARE YOU DOING A NICKEL COATING BEFORE THE SILVER.?
2-3 MICRONS OF NICKEL PREVENT FROM COPPER DIFFUSION BETWEEN THE LAYERS
Bnei Berak, Israel
I THINK THICKNESS OF SILVER IS NOT PROPER.
PL. CHECK THE THICKNESS OF SILVER AND LET US KNOW IT.
REGARDS,
Ajay Raina
Ludhiana, Punjab, India
March 11, 2009
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