Corrosion Prevention of Cobalt-Containing Films by Sodium Dichromate Treatment
Original Publication Date: 1985-Jun-01
Included in the Prior Art Database: 2005-Feb-18
Films containing cobalt, such as CoP, FeCoCr and CoCr films, which are formed on a substrate can be treated for corrosion resistance by dipping in a hot solution of sodium dichromate, followed by rinsing with de-ionized water and drying. The treatment deposits an extremely thin, transparent, corrosion-protective layer over the cobalt-containing film.