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To clarify the effect of SnO2 particle size on the arc erosion behavior of AgSnO2 contact material, Ag–4%SnO2 (mass fraction) contact materials with different sizes of SnO2 particles were fabricated by powder metallurgy. The microstructure of Ag–4%SnO2 contact materials was characterized, and the relative density, hardness and electrical conductivity were measured. The arc erosion of Ag–4%SnO2 contact...
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