Green Tungsten Electrode -RE Tungsten Electrode

This article describes that the RE (rare earth) tungsten electrode, as green tungsten electrode, has been gradually developed to replace the traditional radioactive thorium tungsten electrode material.

Chinese tungsten and rare earth resources reserve and production occupied an absolute advantage. Tungsten is known as the "war metal", "Industrial salt", and the rare earth is called "industrial MSG", as you can know from the name, tungsten and rare earth is playing an irreplaceable role in today's high-tech areas. Because they all have higher temperature performance, so they have a wide application in metallurgy, energy, defense industry, electronic information, the nuclear industry and aerospace and many other fields, and they have become indispensable material in the national defense and civilian facilities which is related to human lives.

Under normal circumstances, rare earth tungsten electrode material can be successfully prepared when tungsten acts as a host material and doped with rare earth oxide (with relatively low electron work function). Because the rare earth metal oxides own excellent thermal electron emission capability, rare earth tungsten electrode material may be, on the one hand, to improve the recrystallization temperature of the material, on the other hand, it can start the electron emission. Therefore, rare earth tungsten electrode material has been to a development direction on replacing the traditional radioactive thorium tungsten electrode material.



 

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