Sintering Process Effect on Tungsten Copper Electrode Properties VI

The effect of sintering temperature on the electrical conductivity of tungsten copper electrode as shown below. We can learn from the figure, tungsten copper electrode conductivity with increasing sintering temperature increases at the beginning. When the sintering temperature is increased from 1150 ℃ to 1300 ℃, tungsten copper alloy electrode conductivity increased from 33.12% IACS to 41.23% IACS. However, when the sintering temperature increased from 1300 ℃ to 1450 ℃, the conductivity of tungsten copper electrodes decreased at this time.

This is due to the beginning of the sintering temperature increases, tungsten skeleton compacts and prepared better pore connectivity, obturator correspondingly less, tungsten, copper infiltrated distributed more evenly, so the conductivity rises with the rising sintering temperature. However, when the sintering temperature continues to rise, tungsten skeleton obturator also increases, thus affecting subsequent infiltration effect, making infiltration insufficient porosity increases, resulting in decreased conductivity of tungsten copper electrodes.

• < Prev
• Next >