Silver/Palladium (Ag/Pd) Alloys - Properties and Applications

Background

The addition of palladium to silver increases its resistance to tarnishing or the formation of silver sulphide. However, they are not considered tarnish resistant until the composition reaches 60% Palladium/40% Silver.

Key Properties

The addition of palladium to silver:

  • Increases its hardness
  • Increases its melting point or creates a more refractory alloy
  • Increases its nobility and resistance to tarnishing

Applications

Silver/palladium alloys developed by Heraeus in 1931 have been used for dentistry in applications such as bridges and crowns.

Silver/palladium alloys are also used in conductive films and pastes, as well as to make multilayer capacitors.

They are also used in AC and DC low current electronic applications, often as contacts. This is because they are ductile and can easily be made into the required shape. However, their use is somewhat restricted due to their high cost.

Primary author: AZoM.com

Comments

  1. Shama Shahiwala Shama Shahiwala India says:

    What is the method of preparing palladium and silveralloy with 60-40 composition?

  2. anku ankur anku ankur India says:

    what is the properties of pd/ag alloy such as thermal conductivity,electrical conductivity,youngs modulus,poissons ratio,heat capacity,density,relative permitivity, etc?

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of AZoM.com.

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