prov:value
| - According to one preferred embodiment, the copper particles are coated with silver or a silver alloy. [0247] Alternatively, a metal oxide coating can advantageously be used, such as a metal oxide selected from the group consisting of ZrO2, NiO, SiO2, TiO2, Cu2O, CuO, Bi2O3, Al2o3, ZnO, SnO, SnO2 and V2O5.
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