Infiltration Time Effect on Tungsten Copper Electrode Properties

Take W-Cu tungsten copper electrode as an example, with increasing infiltration time, the density of tungsten copper electrode increases. And after that the infiltration density reaches the maximum, the density of tungsten copper electrode decreases by the time. The density and hardness of tungsten copper W-25Cu in different infiltration time as follow:

In the process of infiltration, copper solution completely infiltrated tungsten skeleton will take some time, with the increasing infiltration time, tungsten skeleton has infiltrated more fully, the corresponding density of tungsten copper electrode was improved. However, when tungsten skeleton was completely infiltrated by copper solution, if the temperature continues to increase the infiltration density changed a little longer this time but likely to cause the liquid copper tungsten particle erosion, some places inside may appear copper pool, which decrease the density of tungsten copper electrode.

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