| http://www.w3.org/ns/prov#value | - Preferably, the content of the electrically conductive or/and semiconducting particles a) based on boride, carbide, phosphate, silicate and silicide is not more than 80 wt. % of all the electrically conductive or/and semiconducting particles a), particularly preferably not more than 65 wt. %, very particularly preferably not more than 50 wt. %, in particular not more than 35 wt. %.
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