Addition of rare earth metal compounds in nickel, cobalt, or...

Details Addition of rare earth metal compounds in nickel, cobalt, or... Addition of rare earth metal compounds in nickel, cobalt, or...

C - Chemistry, Metallurgy

25

D

204/30

C25D 3/12 (2006.01) C25D 3/20 (2006.01) C25D 3/56 (2006.01)

Patent

CA 1114768

PREVENTION OF ANODE BAG CLOGGING IN NICKEL IRON PLATING Abstract of the Disclosure - This invention relates to a process and composition for the preparation of an electrodeposit which contains at least one metal selected from the group consisting of nickel, cobalt and iron, which comprises passing current from an anode to a cathode through an aqueous plating solution containing at least one member selected from the group consisting of cobalt compounds and nickel compounds and iron compounds to provide cobalt, nickel and ferrous ions for electrodepositing cobalt, nickel, nickel-cobalt alloys, nickel-iron alloys, or nickel-cobalt-iron alloys the improvement comprising the presence of an effective amount of at least one compound or salt which in solution yields at least one member selected from the group consisting of cations of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium in the said baths in a single or combined concentration of 0.1 gram per liter to 20 grams per liter. - i -

299943

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