How to Avoid Silver Tarnish

Silver Tarnish and Its Properties

Silver Tarnish vs No Tarnish

Silver Tarnish (Left) vs No Tarnish (Right)

Silver plating is often used for cosmetic applications and is found on items such as silverware and jewelry. While silver provides value and an aesthetic appearance to these items, it is also used in multiple sub sectors of manufacturing – Power Transmission, Medical, Aerospace, Electronics, Electric Vehicle and many more. The reasons silver plating is used is vast: ductility, electrical and thermal conductivity, solderability, high temperature lubricity, as well as excellent optical reflectivity. Although there are many positive attributes to silver plating, silver tarnish is one is a common occurrence when the proper steps are not taken.

Continue reading

Application Considerations For Gold and Silver Wire Bonding Finishes

By E Probasco

GB3_2040_100dpi6x4Wire bonding is a method in which connections are made between components and/or the leads of a lead frame with extremely fine wires. The wires are typically aluminum or gold, but also include copper and silver. There are three common types of bonding, thermocompression, thermosonic, and ultrasonic. wirebond1Thermocompression uses force, time, and heat to join metals together, while thermosonic uses force, times, heat, and sonics, and ultrasonic bonding uses force, time, and sonics. In any of these instances the most important aspect of bonding is to form a good metallurgical bond with the wire and the metal substrate. Continue reading

SILVER PLATING –An Engineering Finish Gaining in Popularity Within Various Industries

 

Silver Plating of Electrical Components Silver plating offers a range of physical and electrical properties that make it extremely useful for industrial applications. Due to the current increases in the cost of other precious metals such as gold, palladium and rhodium, silver is a cost-effective alternative precious metal for various electrical, thermal and mechanical applications. For these reasons, silver has continued to grow as the finish of choice for various product designs and applications.

Silver has extremely high electrical and thermal conductivity – better than that of gold – which has solidified its use in high current power transmission and lower current power connector applications. Silver also is an excellent high temperature lubricant and can be utilized for various high temperature anti-galling applications within the bearing or fastener industries. Continue reading