Immersion zinc plating
Immersion zinc plating is an electroless (non-electrolytic) coating process that deposits a thin layer of zinc on a less electronegative metal, by immersion in a solution containing a zinc or zincate ions, Zn(OH)2−
4. A typical use is plating aluminum with zinc prior to electrolytic or electroless nickel plating.
Immersion zinc plating involves the displacement of zinc from zincate by the underlying metal:[1]
- 3 Zn(OH)2−
4 + 2 Al → 3 Zn + 2 Al(OH)−
4+ 4 OH−
See also
[edit]- Electrogalvanization (electrolytic zinc coating)
- Immersion gold plating
- Immersion copper plating
- Immersion silver plating
References
[edit]- ^ Glenn O. Mallory, Juan B. Hajdu (1990), Electroless Plating: Fundamentals and Applications, American Electroplaters and Surface Finishers Society, William Andrew Inc., ISBN 0-936569-07-7