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

References

  1. 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
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.