Annealing Process Effect on Tungsten Copper Electrode Properties

After infiltration cooling rate has a great impact on the copper layer quality, too fast cooling will be easy to produce pores and tiny cracks. Meanwhile, due to the furnace temperature unevenness, the copper layer thickness of products are not easy to be uniform, so it requires the use of a copper infiltrated after annealing treatment, which further improving the performance of a tungsten-copper electrode. Some experiments shows that annealing process has a great influence on the electrical conductivity of tungsten copper electrode, there is a table of the electrical conductivity of W-25Cu tungsten copper electrode at different temperature.

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