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→Silver–Tungsten (SIWODUR) Materials
powders are determining the micro structure and the contact specific properties
of this material group ''(Figs. 2.134 and 2.135) (Table 2.37)''.
[[File:Contact and Switching Properties of Contact Materials Based on.jpg|right|thumb|Contact and Switching Properties of Contact Materials Based on]]
During repeated switching under arcing loads tungsten oxides and mixed