THERMIONIC EMISSION OF Mo-Y2O3 FILAMENT CATHODE
来源期刊：中国有色金属学报(英文版)1998年第1期
论文作者：Zuo Tieyong Nie Zuoren Zhou Meiling Zhang Jiuxing Wang Jinshu
文章页码：44 - 47
Key words：Mo; Y2O3; cathode; thermionic emission
Abstract: A new thermionic electron emission material has been studied. The electron emission properties and microstructure of Y-Mo(Mo-Y2O3) wire with content of 3%~5% Y2O3 have been systematically investigated by means of electron tube emission and electron microscope. The results showed that the Y-Mo material has very good electron emission ability, higher emission efficiency and lower operation temperature than those of Th-W cathode, respectively. In addition, Y-Mo cathode electron tube exhibits more stable emission current than that of La-Mo ones.
