Barium tungsten electrode is a cathode material widely used in vacuum electronic devices (such as electron guns and microwave tubes). Its microscopic defects have an important influence on the electron emission performance, thermal stability and mechanical strength of the electrode. The following are the main factors affecting the microscopic defects of barium tungsten electrodes:

The stability of barium tungsten electrode (usually refers to barium tungsten cathode, a hot cathode electron emission material) in high-frequency electric field (such as microwave tube, magnetron, traveling wave tube, etc.) is its core performance indicator. The factors affecting the stability of high-frequency electric field of barium tungsten electrode mainly include the following aspects:

The factors affecting the purity of barium tungsten electrode materials run through the entire process of its preparation, processing, storage and use, involving multiple links such as raw material selection, process control, and environmental management.

The pulse discharge performance of barium tungsten electrode is affected by the comprehensive effect of multiple influencing factors such as material composition, microstructure, preparation process, working parameters and environmental conditions.