Infiltration Time Effect on Tungsten Copper Electrode Properties III

Viewed from the electrical conductivity of tungsten copper electrode, it is increasing with the infiltration time. We can learn from the graph that infiltration time from 30 min to 80min, the conductivity of tungsten copper alloy from 32.12% IACS to 38.6% IACS. While the infiltration time continues to increase, the conductivity was reduced from 38.6% IACS to 32.58% IACS.

This is due to the conductive properties of tungsten-copper depends mainly on the copper content and connectivity, as time increases, the amount of copper was infiltrated increases, more evenly distributed organizations tungsten copper, tungsten copper electrode conductivity correspondingly improved. But if infiltration time continued to increase, after that tungsten particles begin to grow up and there may arise organization copper pool, which causes the uneven distribution, so the hardness and conductivity of tungsten copper electrode will decrease.

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