Does pulsed plating give harder gold plating deposits?
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I am interested is finding out if pulsing applied voltage during gold plating provides a harder plated surface?
Yes, it does, Gary.
The disruption in the current, followed by a sudden surge, causes new grains to form, resulting in a smaller, harder, structure. Much has been published on the general idea of pulse plating, but it is yet another variable in a very complex system. A literature search keyed by gold and pulse should give you dozens of articles.
There is a book on the subject, "Theory and Practice of Pulse Plating" [link is to product info at Amazon] by Jean-Claude Puippe & Frank Leaman, but it is out of print and very hard to find.
Rectifier manufacturers like Dynatronix and North American Rectifier [Scarborough, Ontario] can probably provide "case history" flyers about pulse plating.
Ted Mooney, P.E.
Pine Beach, New Jersey
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