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Space duty requires high conductivity plating for aluminum

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I've got an aluminum frame (6061 T6) and wish to prevent oxidation and yet have the best conductive surface possible. We are currently looking at 50-100 microinches gold over 100 microinches of nickel. Anyone know of a better combo. Want to make sure the conductivity is not only good along the surface of the gold but also thru the gold-nickel and nickel-aluminum interfaces. This is for a space flight application. thanks for your time....

Neil D [last name deleted for privacy by Editor]
contract assembler - Hayward, California, USA

Sounds perfect to me. But remember that aluminum must be zincated before plating.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

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