Electrodeposition of binary magnetic alloys

The electrodeposition of binary magnetic alloys such as Fe-Ni, Co-Ni and Fe-Co of iron group metals and their practical applications are reviewed with special reference to the type of alloy and the bath characteristics. Emphasis is laid on their magnetic properties and the conditions required to produce alloys having useful magnetic properties. The production of such alloys by the superimposition of an a.c. density on a d.c. density is also discussed. It is shown that a wide range of alloy compositions may be obtained from the main baths investigated. Relations between the properties of the alloy deposits and the different conditions producing them are examined. Mutual deposition of Fe-Ni, Co-Ni and Fe-Co in thin films obtained from these baths could be of great industrial value, especially in the computer and electronics industries, and such films could be used as decorative and protective coatings. © 1982