Progress in the study of the tungsten thermionic cathode emission mechanism is summarized.
综述了钨热阴极发射机制研究进展,系统回顾了历史上先后出现的单原子层偶极子理论、半导体模型、动态表面发射中心理论等热电子发射传统理论,分析了每一种理论的特点以及不足。
Six kinds of molybdenum thermionic cathode materials doped with different weight content of rare earth oxides were successfully prepared by powder metallurgy method and metal processing technology, and the fine technics of preparation was confirmed.
5wt%)稀土钼热阴极材料,确定了其优良的制备工艺。