ENHANCEMENT OF CORROSION RESISTANCE OF ELECTRODEPOSITED PALLADIUM-NICKEL ALLOY

ENHANCEMENT OF CORROSION RESISTANCE OF ELECTRODEPOSITED PALLADIUM-NICKEL ALLOY

In a method of electrodepositing a palladium/nickel alloy coating upon a substrate wherein the coating is plated onto the substrate by electrodeposition from a bath containing 5 to 30 g per liter of palladium and 5 to 30 g per liter of nickel and having a palladium-nickel ratio such that the coating...

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Bibliographische Detailangaben
Hauptverfasser: KURAUSU SHIYURUTSUEEBERUGE, ROBERUTO BURUGAA
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Beschreibung
Zusammenfassung:In a method of electrodepositing a palladium/nickel alloy coating upon a substrate wherein the coating is plated onto the substrate by electrodeposition from a bath containing 5 to 30 g per liter of palladium and 5 to 30 g per liter of nickel and having a palladium-nickel ratio such that the coating contains 30 to 90% by weight of palladium, the improvement which comprises providing in the bath during the eletrodeposition of the coating at least one sulfonyl urea compound capable of improving the corrision resistance of the coating.