Evaluation of different platings for aluminum-to-copper connections

A number of coating materials commonly used for aluminum-to-copper connections were evaluated on the basis of their effect on the contact resistance-force/torque relationships, the performance of coated joints under current-cycling and fretting conditions, and ability to protect the contact against...

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Bibliographic Details
Published inElectrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts pp. 249 - 260
Main Author Braunovic, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1991
Subjects
Aluminum
Coatings
Copper
Corrosion
Galvanizing
Industrial relations
Joining materials
Metals industry
Protection
Torque
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Summary:A number of coating materials commonly used for aluminum-to-copper connections were evaluated on the basis of their effect on the contact resistance-force/torque relationships, the performance of coated joints under current-cycling and fretting conditions, and ability to protect the contact against galvanic corrosion in saline and industrially polluted environments. The results showed that the use of nickel-plating of both aluminum and copper and copper-plating of aluminum ensures the greatest stability while bare aluminum in contact with tin- and silver-plated copper shows the poorest performance under different operating conditions.< >
ISBN:0780302311
9780780302310
DOI:10.1109/HOLM.1991.170831