SILVER-BASED ALLOY Russian patent published in 1995 - IPC

FIELD: silver-based alloys. SUBSTANCE: silver-based alloy consists of components at the following ratio, mass-%: cadmium, 22 to 28; indium, 0.4 to 1.5; yttrium, 0.0008 to 0.01 and silver, remainder. Introducing of yttrium in this alloy provides for reduction of contact resistance to 3.5-3.8 3,5·3,8·10^-3 Оhm, ohms, increase of shear strength of bimetallic contact to 117.6-127.4 MPa, increase of relative elongation to 55-62% and relative reduction of area to 90-95% at retained erosion resistance (reduction of mass per arc discharge) at level of 2,8-4,2·10^-8g g/discharge for current of % A and 5,7-10,1·10^-8g g/discharge for current of 25 A. EFFECT: reduction of contact resistance, increase of shear strength of bimetallic contact and ductility at retained erosion resistance of alloy. 2 tbl