Electroplated palladium or palladium alloys have - respectively with gold flash - been in use for many years in the connector industry as a substitute for hard gold [1, 2]. The coating properties of the palladium-nickel alloy are in many ways comparable with those of hard gold. As far as the abrasion behaviour is concerned, palladium-nickel is even superior to hard gold and improves the sliding characteristics in combination with a surface layer of gold.
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