Nickel-based electrical contact

Details Nickel-based electrical contact Nickel-based electrical contact

H - Electricity

01

B

75/115, 339/115

H01B 1/02 (2006.01) H01H 1/021 (2006.01)

Patent

CA 1248780

- 9 - NICKEL-BASED ELECTRICAL CONTACT Abstract Contacts comprising nickel and having a crystallographically disordered structure having electrical contact properties which render them suitable as replacements for gold contacts; disclosed contacts have low contact resistance even after prolonged exposure to an oxidizing ambient. Contacts comprising nickel and at least one glass-forming additive selected from boron, silicon, germanium, phosphorus, arsenic, antimony, or bismuth, are readily formed, e.g., as layers on substrates. A crystallographically disordered structure is produced in a contact surface layer at least upon exposure to an oxidizing ambient; alternatively, such desired structure can be produced by ion bombardment and even in the absence of glass-forming additives.

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