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→Silver-Palladium Alloys
====Silver-Palladium Alloys====
The addition of 30 wt% Pd increases the mechanical properties as well as the resistance of silver against the influence of sulfur and sulfur containing
compounds significantly <xr id="tab:tab2.17"/> (Tab 2.17) and <xr id="tab:tab2.18"/> (Tab.2.18). Alloys with 40-60 wt% Pd have an even higher resistance against silver sulfide formation. At these percentage ranges however the catalytic properties of palladium can influence the contact resistance behavior negatively. The formability also decreases with increasing Pd contents.
AgPd alloys are hard, arc erosion resistant, and have a lower tendency towards material transfer under DC loads <xr id="tab:tab2.19"/> (Table 2.19). On the other hand the electrical conductivity is decreased at higher Pd contents. The ternary alloy AgPd30Cu5 has an even higher hardness which makes it suitable for use in sliding contact systems.
