Tungsten-cobalt alloy impregnated barium tungsten cathode is a special cathode material. Its core part is tungsten-cobalt alloy. This alloy has a high elastic modulus and a small thermal expansion coefficient. It is the most widely used type of cemented carbide. “Impregnated barium tungsten” means that the barium tungsten compound is impregnated into the base material of the tungsten-cobalt alloy cathode through a specific process.
Barium tungsten compounds have excellent electron emission properties and can improve the emission current density and stability of the cathode. Therefore, the tungsten-cobalt alloy impregnated barium tungsten cathode combines the mechanical properties of tungsten-cobalt alloys and the electron emission properties of barium tungsten compounds, making it a high-performance cathode material.
Tungsten-cobalt alloy impregnated barium tungsten cathode materials are usually used in electronic equipment and systems such as gas discharge lamps, high-frequency oscillators, vacuum tubes, microwave tubes, etc. The stability and reliability of their performance are crucial to the overall performance of the equipment.
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