silver based electrical contact bar stock

SILVER BASED ELECTRICAL CONTACT BAR STOCK SKIN

Tarnish on silver could become critical for applications where skin effect was important (high frequencies). (Super conductors are mostly used for very high power magnets). The low temperature superconductors do this too, but at much higher currents so they are more useful. The real problem is that the high temperature superconductors lose that property in high magnetic fields, which happens when you use them with high currents. You can easily imagine depositing films of superconducting material on drum,etching it,adding a insulating layer and repeating,thus creating a large number of windings. This on its face wouldn't be a deal breaker. First, wires can be easily made and coils easily wound. The metallic ones are used for two reasons. A common one is an alloy of niobium and tin. Tarnish could be a problem for high frequencies where skin effect becomes critical.Īs for superconductors, most of the commonly used ones are in fact metals. The difference isn't a lot, but 5% is 5%. It would not surprise me to see it used in integrated circuits someday, however, like copper is now (and aluminum is/was). Silver is the best conductor, but usually not used due to expense. Silver is fine for many things, but where a very low voltage and low current is involved (for example, in small electronic signals, such as computers and cell phones) the tarnish can interfere with the signal at the joint, and gold must be used instead.Ī. But it tarnishes, which means a high resistance oxide/sulfide forms on its surface. Silver has higher conductivity (lower resistance) than gold. You have to look at two different things, Justin: the resistance of the solid material that is the conductor, and the resistance of the joint (or connection / contact surface / interface, or whatever you want to call it) that the current also has to pass through.

Silver based electrical contact bar stock