Infiltration Temperature Effect on Tungsten Copper Electrode Properties

Infiltration temperature controlling is crucial in the process of tungsten copper electrode, its rise and fall has a great effect on comprehensive performance of tungsten copper electrode. There is a graph of infiltration temperature effect on W-25Cu tungsten copper density as follow.

Take W-25Cu tungsten copper electrode as an example, the density of tungsten copper electrode increases with the increasing infiltration temperature in the beginning. When the temperature reaches 1350 ℃, it reaches highest density (14.84g/cm3). However, when the temperature exceeds 1350 ℃, the density tungsten copper electrode decreased. This is because one of the basic conditions necessary for infiltration is infiltration requirements can be well wetted metal matrix material, i.e. 0 ° <θ <90 ° (θ copper and tungsten wetting angle). And smaller θ and the more conducive to infiltration process.