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→Silver–Molybdenum (SILMODUR) Materials
Ag/Mo materials with typically 50-70 wt% molybdenum are usually produced by the powder metallurgical infiltration process <xr id="fig:fig2.137"/> (Fig. 2.137) (Table 2.36)''. Their contact properties are similar to those of Ag/W materials <xr id="tab:tab2.37"/> (Table 2.37). Since the molybdenum oxide is thermally less stable than tungsten oxide the self-cleaning effect of Ag/Mo contact surface during arcing is more pronounced and the contact resistance remains lower than that of Ag/W. The arc erosion resistance of Ag/Mo however is lower than the one for Ag/W materials. The main applications for Ag/Mo contacts are in equipment protecting switching devices <xr id="tab:tab2.38"/> (Table 2.38).
<xr id="fig:fig2.134"/> Fig. 2.134: Micro structure of Ag/W 25/75 <xr id="fig:fig2.135"/> Fig. 2.135: Micro structure of Ag/WC 50/50 <xr id="fig:fig2.136"/> Fig. 2.136: Micro structure of Ag/WC27/C3 <xr id="fig:fig2.137"/> Fig. 2.137: Micro structure of Ag/Mo 35/65 <div class="multiple-images"> <figure id="fig:fig2.134">
[[File:Micro structure of Ag W 25 75.jpg|right|thumb|Micro structure of Ag/W 25/75]]
[[File:Micro structure of Ag WC 50 50.jpg|right|thumb|Micro structure of Ag/WC 50/50]]
[[File:Micro structure of -Ag WC 27 C3.jpg|right|thumb|Micro structure of Ag/WC27/C3]]
[[File:Micro structure of Ag Mo 35 65.jpg|right|thumb|Micro structure of Ag/Mo 35/65]]
</figure></div><div class="clear"></div>
'''Table 2.36: Physical Properties of Contact Materials Based on Silver–Tungsten (SIWODUR),