Comparative Study of the Properties of Cu-Cr-Mo System Electrical Contact Material by Sintering and Infiltration Methods

Contact materials in high-voltage vacuum interrupters require properties such as high conductivity, density and hardness to minimize arc heat damage. In this study, Cu–Cr–Mo alloy contact were examined for their usage materials. Ball milling was performed after analyzing the raw of Cu, Cr Mo powders. A green compact produced using pressure with a mixed powder. Subsequently, composite by sintering via temperature infiltration method according Cu content compact. The 8.55 g/cm3 (relative 93%), 217 HV an electrical conductivity 40.7% IACS at 1200 °C. 10 wt.% exhibited 8.7 94%), 274 39 IACS% 1300 measurements physical our newly established demonstrated new possibility material interrupters.