One of the historical concerns with silver plating is the formation of silver sulfide compounds, commonly called silver tarnish. Thinner silver plating without a nickel underplate is best used on static joints or low duty cycle connectors that are mated and unmated relatively infrequently. In applications such as this, a higher deposit thickness of silver is recommended as well as the use of a nickel or electroless nickel underplate. However, high-pressure wear surfaces such as blade-style stab connectors can be susceptible to silverwear. Silver has excellent lubricity and resists galling in switching, sliding or rotary applications. This increases the effective contact area resulting in less overall connector resistance.įigure 1: Conductivity of Silver as Compared to Copper and Other Metals In addition, silver is a relatively soft metal which allows the silver deposit to compress and form around a mating connecter filling small voids and micro-roughness. The primary reason is that silver has the highest electrical and thermal conductivity of any metal, which facilitates the efficient transmission of electricity and heat. Silver plating has many unique properties that make it desirable for these applications. In recent years silver plating of copper electronic components including connectors and terminals has grown rapidly within the electronic, automotive and electric vehicle (EV) markets. Silver has been applied since late 1800s on electrical switchgear and other components that pass electrical current. Silver plating of copper or copper alloys is a highly functional finish for transferring heat and electricity utilized across a wide breath of industries. Silver Plating of Copper or Copper Alloys – Silver Properties Selective Plating Services (Electroplating and Electroless Plating).Plate to Gauge or Plate to Dimension Services.Copper Plating of Bullets and Projectiles.Black Nickel Plating (Electrolytic) Services.Electroless Nickel Plating vs Electrolytic Nickel Plating.Tacti-Black® & Electroless Nickel Firearms Finishes.Black Electroless Nickel Plating (Tacti-Black®) Services.
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