Порівняльна оцінка срібловмісних і купрум-молібденових конденсатів

This work is devoted to the study of the corrosion and erosion resistance of composite materials based on copper and molybdenum, which are used as contact materials. It was investigated that the introduction of zirconium and yttrium into the Cu-Mo system (Cu – (10-12%)Mo – (0.2%)Zr,Y) contributes to an increase in corrosion resistance by 20%, and the corrosion depth is reduced to 0.02 g/(m2·year). It is shown that the dependence of the change in contact temperature on the contact resistance is linear, the higher contact resistance leads to more intensively contact temperature increase. The dependence of the contact resistance of contacts made of Cu-Mo and Ag-CdO materials on the number of switching cycles is established. A comparative characteristic of contacts made of silver-containing materials and contact materials made of Cu-Mo is carried out and the advantage of last one is shown