SILVER-BASED CONTACT MATERIAL, USE OF SUCH A CONTACT MATERIAL IN SWITCHGEAR FOR POWER-ENGINEERING APPLICATIONS AND METHOD OF MANUFACTURING THE CONTACT MATERIAL

摘要

Based on silver/ferriferous oxide be proposed as substitution silver/nickel material be frequently used for it is especially true in low-tension switch gear contact chip. The present invention proposes, especially yttrium oxide (Y2O3). Material compositions Ag/Fe2O310/Y2O31, for example, its thermophilic behavior, has various required characteristic contact chips. In addition, the material can also include the 6th subgroup that at least one metal oxide includes the periodic table of elements, preferably iron tungstate (FeWO4). Material compositions Ag/Fe2O39/Y2O31/FeWO40.5 have proved to be specially suitable due to its further improved welding and short circuit curve.