Profile: AMI Doduco, Inc. offers electrical contacts. We are specialized in contact technology including contact materials, semi-finished products, precision stamped contact parts and electromechanical components. The design and construction of tooling are also done in-house. Other key activities include electroplating products, precious metal coatings and refining. Silver possesses the highest electrical and thermal conductivity, low contact resistance, very good deformability & is characterized by good brazability and weldability. Silver as contact material satisfies the requirements only in a narrow range of electrical applications. Alloying of silver with palladium improves the resistance against both the electric wear and corrosion. Alloying of silver with copper and nickel in low concentrations increases the mechanical hardness & the resistance against electrical wear, but without reducing the electrical conductiviy & increasing contact resistance essentially. Finally, silver with alloying additives like manganese and nickel are the basis for dispersion hardened alloys. Powder metallurgically produced silver/nickel contact materials are more resistant against electric wear and contact welding than silver alloys. They possess good arc mobility and arc extinguishing properties, as well as high electrical & thermal conductivity. Contact resistance increases with the amount of nickel. Sinidur contact materials can be deformed without problems, and they are brazable & weldable.