The platinum group metals include the elements Pt, Pd, Rh, Ru, Ir and Os. For electrical contacts, platinum and palladium have practical significance as base alloy materials and ruthenium and iridium are used as alloying components. Pt and Pd have similar corrosion resistance as gold but for the reason of their catalytical properties, they tend to polymerize adsorbed organic vapors on contact surfaces. During frictional movement between contact surfaces, the polymerized compounds known as “brown powder” are formed,...
Data Book of Electrical Contacts
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 Micro structure of Ag C 95 5.jpg Micro structure of Ag/C 95/5: a) perpendicular to extrusion direction
b) parallel to extrusion direction, 1) Ag/C contact layer, 2) Ag backing layer
Pages: Silver Based Materials, Werkstoffe auf Silber-Basis by Doduco Redaktion
 Softening of PtW5 after annealing.jpg Softening of PtW5 after annealing for 1hr after 80% cold working
Pages: Platinum Metal Based Materials, Werkstoffe aus Platin-Metallen by Doduco Redaktion |
